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USGS USGS Fact Sheets Skip navigational links Search InfoBank A Century Of Service„100 Years Of Continuous Streamflow-Data Collection On The Connecticut River, Montague City, Massachusetts A Chronicle of Organochlorine Contamination in Clear Creek, Galveston and Harris Counties, Texas, 1960…2002, as Recorded in Sediment Cores A NOAA…USGS Demonstration Flash-Flood and Debris-Flow Early-Warning System A Proposal for Upgrading the National-Scale Soil Geochemical Database for the United States A Simple Field Leach Test to Assess Potential Leaching of Soluble Constituents from Mine Wastes, Soils, and Other Geologic Materials A Small-Diameter Sample Pump For Collection Of Depth-Dependent Samples From Production Wells Under Pumping Conditions Acoustic Doppler Velocity Monitoring Within Main Spring, Barton Springs, Austin, Texas, April…September 2004„Enhancing the Accuracy of Springflow Data Adjustments to U.S. Geological Survey Peak-Flow Magnitude-Frequency Relations in Delaware and Maryland Following Hurricane Floyd, September 1999 American Alligator Ecology and Monitoring for the Comprehensive Everglades Restoration Plan ANSS „ Advanced National Seismic System Advancing National Seismic Safety„Accomplishments FY2002 ANSS … Reducing the Devastating Effects of Earthquakes Applying Indicators of Hydrologic Alteration to Texas Streams „ Overview of Methods With Examples From the Trinity River Basin Aquatic Systems and Technology Applications Arsenic, Nitrate, and Chloride in Groundwater, Oakland County, Michigan Assessing Rangelands Assessing Sandhill Crane Roosting Habitat along the Platte River, Nebraska Assessing the Coal Resources of Afghanistan Assessing the Seismic Hazards of Afghanistan Assessing the Vulnerability of Public-Supply Wells to Contamination from Urban, Agricultural, and Natural Sources Assessment of Oil and Gas Resource Potential of the Denver Basin Province of Colorado, Kansas, Nebraska, South Dakota, and Wyoming - 2002 Assessment of Selected Water-Quality Data Collected in the Lower Red River \(Main Stem\) Basin, Texas, 1997…98 Assessment Of Stream Quality Using Biological Indices At Selected Sites In The Big Elk And Octoraro Creek Basins, Chester County, Pennsylvania, 1981-97 Assessment Of Stream Quality Using Biological Indices At Selected Sites In The Brandywine Creek Basin, Chester County, Pennsylvania, 1981-97 Assessment Of Stream Quality Using Biological Indices At Selected Sites In The Delaware River Basin, Chester County, Pennsylvania, 1981-97 Assessment Of Stream Quality Using Biological Indices At Selected Sites In The Red Clay And White Clay Creek Basins, Chester County, Pennsylvania, 1981-97 Assessment Of Stream Quality Using Biological Indices At Selected Sites In The Schuylkill River Basin, Chester County, Pennsylvania, 1981-97 Assessment of the Biological Recovery of Upper Cedar Creek, Boone County, Missouri, Following an Abandoned Mine Land Reclamation Assessment of Undiscovered Carboniferous Coal-Bed Gas Resources of the Appalachian Basin and Black Warrior Basin Provinces, 2002 Assessment of Undiscovered Oil and Gas Resources in Hanna, Laramie, Shirley Basins Province, Wyoming, 2005 Assessment of Undiscovered Oil and Gas Resources in Selected Rocky Mountain Provinces for the Energy Policy and Conservation Act of 2000 \(EPCA 2000\) Assessment of Undiscovered Oil and Gas Resources in the Louisiana-Mississippi Salt Basins Province of the Northern Gulf Coast Region Assessment of Undiscovered Oil and Gas Resources in Upper Cretaceous Navarro and Taylor Groups, Western Gulf Province, Gulf Coast Region, Texas, 2003 Assessment of Undiscovered Oil and Gas Resources of the Appalachian Basin Province, 2002 Assessment of Undiscovered Oil and Gas Resources of the Bend Arch-Fort Worth Basin Province of North-Central Texas and Southwestern Oklahoma, 2003 Assessment of Undiscovered Oil and Gas Resources of the Black Warrior Basin Province, 2002 Assessment of Undiscovered Oil and Gas Resources of the Burgos Basin Province, Northeastern Mexico, 2003 Assessment of Undiscovered Oil and Gas Resources of the Eastern Great Basin Province, 2005 Assessment of Undiscovered Oil and Gas Resources of the Montana Thrust Belt Province, 2002 Assessment of Undiscovered Oil and Gas Resources of the North Cuba Basin, Cuba, 2004 Assessment of Undiscovered Oil and Gas Resources of the Powder River Basin Province of Wyoming and Montana, 2002 Assessment of Undiscovered Oil and Gas Resources of the Raton Basin…Sierra Grande Uplift Province of New Mexico and Colorado, 2004 Assessment of Undiscovered Oil and Gas Resources of the San Joaquin Basin Province of California, 2003 Assessment of Undiscovered Oil and Gas Resources of the San Joaquin Basin Province of California, 2003 Assessment of Undiscovered Oil and Gas Resources of the San Juan Basin Province of New Mexico and Colorado, 2002 Assessment of Undiscovered Oil and Gas Resources of the Southwestern Wyoming Province, 2002 Assessment of Undiscovered Oil and Gas Resources of the U.S. Portion of the Michigan Basin, 2004 Assessment of Undiscovered Oil and Gas Resources of the Uinta-Piceance Province of Colorado and Utah, 2002 Assessment of Undiscovered Oil and Gas Resources of the Uinta-Piceance Province of Colorado and Utah, 2002 Assessment of Undiscovered Oil and Gas Resources of the Wind River Basin Province, 2005 Assessment of Undiscovered Oil and Gas Resources of the Wyoming Thrust Belt Province, 2003 Assessment of Undiscovered Oil and Gas Resources: Louisiana-Mississippi Salt Basins Province, Northern Gulf Coast Region, 2002 Assessment of Undiscovered Oil and Gas Resources: Louisiana-Mississippi Salt Basins Province, Northern Gulf Coast Region, 2002 Atrazine in Southern Louisiana Streams, 1998-2000 At-Risk Riverine Fishes: Pad dle fi sh and Lake Sturgeon At-Risk Riverine Fishes: Paddlefish and Lake Sturgeon Availability Of Ground-Water Data For California, Water Year 2001 Availability Of Ground-Water Data For California, Water Year 2003 Availability of Ground-Water Data for California, Water Year 2004 Availability of Ground-Water Data for Washington, 2004 Availabiltiy of Ground-Water Data for California, Water Year 2002 Bacterial Contamination at Huntington Beach, California„Is It From a Local Offshore Wastewater Outfall? Basin and Range Carbonate Aquifer System Study Belowground Dynamics in Mangrove Ecosystems BEST/EMAP-Western Small Estuary Monitoring Bogue Phalia Watershed in Mississippi Selected for a National Water-Quality Study Born of Fire „ Restoring Sagebrush Steppe Box Springs Field Station Bryophytes and Lichens: Small but Indispensable Forest Dwellers Building a Community Sediment Transport Model Burrowing Owls Winter in South Texas Career Opportunities for Students Cartographic Services Contractƒfor everything geographic Cattle Grazing and Its Long-term Effects on Sedge Mead Central Mojave Vegetation Database Changes in Streamflow Timing in New England During the 20th Century Changes in Streamflow Timing in the Western United States in Recent Decades Changing Salinity Patterns in Biscayne Bay, Florida �Hot WaterŽ in Lassen Volcanic National Park „ Fumaroles, Steaming Ground, and Boiling Mudpots Chronic Wasting Disease \(CWD\): Just the Facts Ciencia, Sociedad, Soluciones: Una Introducción al USGS Climatic Fluctuations, Drought, and Flow in the Colorado River Basin Coal Extraction„Environmental Prediction Coal Underlying Federal Lands in the Gulf of Mexico Coastal Plain Coal-Bed Gas Resources of the Rocky Mountain Region Coal-Bed Gas Resources of the Rocky Mountain Region Coastal-Change and Glaciological Maps of Antarctica Columbia Environmental Research Center Columbia Environmental Research Center Science Capabilities Communicating Science Communicating with Wildland Interface Communities During Wildfile Comparison of Dissolved Oxygen and Aquatic Biota Between a State 303\(d\)-Listed Stream Segment and USGS Biological Reference Sites in the San Jacinto River Basin, Texas, 2000 Continuing the Legacy of Lewis and Clark Continuous Real-Time Water Information„A Vital Kansas Asset Cooperative Topographic Mapping Program Cooperative Water Program„A Partnership in the Nation�s Water-Resources Program Coral Microbial Ecology Cottonwood in the Missouri Breaks National Monument Crater Lake - Blue Through Time Data Summary and Loading Sources for Selected Water-Quality Characteristics of Streams in Blowdown Areas, North Fork Elk River Watershed, Colorado, March 1999…August 2000 Data Summary and Loading Sources for Selected Water-Quality Characteristics of Streams in Blowdown Areas, North Fork Elk River Watershed, Colorado, March 1999…August 2000 Datos Científicos para Apoyar los Estudios de la Salud Ambiental en la Región Fronteriza Entre los Estados Unidos y México Datos Científicos para Apoyar los Estudios de la Salud Ambiental en la Región Fronteriza Entre los Estados Unidos y México Davis Field Station Demonstration-Site Development and Phytoremediation Processes Associated With Trichloroethene \(TCE\) in Ground Water, Naval Air Station-Joint Reserve Base Carswell Field, Fort Worth, Texas Desalination of Ground Water: Earth Science Perspectives Development of Coastal Flow and Transport Models in Support of Everglades Restoration Development of Landscape Models for Conservation of Freshwater Mussels in the Upper Mississippi River Basin Did You Feel It? Citizens Contribute to Earthquake Science Distance to Nearest Road in the Conterminous United States Distinguishing between Debris Flows and Floods from Field Evidence in Small Watersheds Diurnal Variation in Trace-Metal Concentrations in Streams Dixon Field Station Drought Conditions in Utah During 1999-2002: A Historical Perspective Earth Observing-1 Extended Mission Earthquake Hazard in the Heart of the Homeland Earthquake Hazards…A National Threat Earthquakes„Rattling the Earth�s Plumbing System Ecological Indicators of Water Quality in the Spokane River, Idaho and Washington, 1998 and 1999 Economic Analysis of Undiscovered Oil and Gas of the Central North Slope of Alaska, 2005 Ecosystem Dynamics Effects of Ammonia on Freshwater Mussels in the St. Croix River Effects of Contaminant Sources on Stream-Water Quality in Johnson County, Northeastern Kansas, October 2002 Through June 2004 Effects of Hydrology on Red Mangrove Recruits Effects of Shrubland Changes on Birds in the Intermountain West Effects of Spray-Irrigated Municipal Wastewater on a Small Watershed in Chester County, Pennsylvania Effects of Urban Development on Floods Effects of Urbanization on Stream Ecosystems Endangered Fish Threatened by Asian Fish Tapeworm Environmental Contaminants and their Effects on Fish in the Colorado River Basin Environmental Effects of Historical Mining in the Boulder River Watershed, Southwestern Montana Estimated Use of Water in the United States in 2000 EuroSTRATAFORM„Po and Apennine Sediment Transport and Accumulation Experiment \(PASTA\) Evaluación de los Recursos Potenciales de Petróleo y Gas en la Provincia de la Cuenca de Burgos, México Nororiental, 2003 Evaluation of OTT PLUVIO Precipitation Gage versus Belfort Universal Precipitation Gage 5-780 - Supplemental Data, January 15 through July 16, 2002 Factors Affecting Ground-Water Quality In Oakland County, Michigan Facts About Bighead and Silver Carp Farm Ponds as Wildlife Habitat in the Driftless Area Ecoregion Firearms Safety Program Flood Hazards „ A National Threat Flooding Associated with Typhoon Chata�an, July 5, 2002, Guam Floods in Southwest-Central Florida from Hurricane Frances, September 2004 Floods of North-Central Indiana, July 2003 Floods of November 1996 through January 1997 in the Umpqua River Basin, Oregon Floods on the Kenai Peninsula, Alaska, October and November 2002 Florida in a Tank„The Role of Experiments in Ecosystem Restoration Florida Springs Interdisciplinary Science Study FORTinfoFactSheet5.indd Fractured-Rock Aquifers: Understanding an Increasingly Important Source of Water Frequency of Debris Flows in Grand Canyon Freshwater Use in Delaware, 2000 Freshwater Use Trends in Maryland, 1985-2000 Gap Analysis Program History and Overview Geographic Analysis and Monitoring Program Geographic Information System Tools for Conservation Planning Geographic Research at Lake Tahoe Geohydrology of Recharge and SeawaterIntrusion in the Pajaro Valley, Santa Cruzand Monterey Counties, California Geologic Sequestration of Carbon Dioxide„An Energy Resource Perspective Glacial Ice Cores Reveal A Record of Natural and Anthropogenic Atmospheric Mercury Deposition for the Last 270 Years Global Change Impacts on Mangrove Ecosystems Granger Drain Subbasin Selected for a National Water-Quality Study Ground-Water Age and Flow at Great Sand Dunes National Monument, South-Central Colorado Ground-Water Ambient Monitoring and Assessment Program Ground-Water Models of the Alluvial and Sparta Aquifers: Management Tools for a Sustainable Resource Ground-Water Quality of Alluvial and Sedimentary-Rock Aquifers in the Vicinity of Fairplay and Alma, Park County, Colorado, September-October 2002 Ground-Water Quality of Granitic- and Volcanic-Rock Aquifers in Southeastern Park County, Colorado, July-August 2003 Ground-Water Resources of the Middle Rio Grande Basin Ground-Water Resources Program Gulf Coast Geology \(GCG\) Online Gunnison Gorge National Conservation Area, Delta and Montrose Counties, Colorado Hazards, Disasters, and The National Map Heavy Oil and Natural Bitumen„Strategic Petroleum Resources Helping to Combat Chronic Wasting Disease Highlights of the USGS Cooperative Water Program in Massachusetts High-Resolution Imaging within the Urban Environment„�What�s beneath our streetsŽ! Historic Aerial Photography of the Greater Everglades - Archive and Geodatabase Development Historical Changes in Lake Ice-Out Dates as Indicators of Climate Change in New England, 1850-2000 Historical Trend in Ice Thickness on the Piscataquis River, near Dover-Foxcroft, Central Maine History and Ecology of Mangroves in the Dry Tortugas Houston-Galveston Bay Area, Texas, From Space„A New Tool for Mapping Land Subsidence Hubbard Glacier, Alaska: Growing and Advancing in Spite of Global Climate Change and the 1986 and 2002 Russell Lake Outburst Floods Hurricane Hazards „ A National Threat Hydrogeology and Simulation of Ground - Water Flow in a Glacial-Aquifer System at Cortland County, New York Hydrologic Characteristics of Estuarine River Systems within Everglades National Park Hydrologic Conditions in Arizona During 1999…2004: A Historical Perspective Impacts of Sulfate Contamination on the Florida Everglades Ecosystem Impacts of Sulfate Contamination on the Florida Everglades Ecosystem Influence of Forest Management on Headwater Stream Amphibians at Multiple Spatial Scales Integrated Fire Science in the Rocky Mountains Internet Map Service for Environmental Health in the U.S.-Mexico Border Region Invasive Species Science Inventory of Freshwater Fish Species within Big Cypress National Preserve: The Basis for a Long-Term Sampling Program Investigating Contaminants ...from Molecules to Landscapes Investigation of the Environemental Efffects of Proposed and Current Lead Mining in Southern Missouri Investigation of the Geology and Hydrology of the Upper and Middle Verde River Watershed of Central Arizona: A Project of the Arizona Rural Watershed Initiative Is a Powerful Quake Likely to Strike in the Next 30 Years? Is Septic Waste Affecting Drinking Water From Shallow Domestic Wells Along the Platte River in Eastern Nebraska? Isotopic Views of Food Web Structure in the Florida Everglades Lake Worth Bottom Sediments„A Chronicle of Water-Quality Changes in Western Fort Worth, Texas, 1914…2001 LakeVOC„A Computer Model to Estimate the Concentration of Volatile Organic Compounds in Lakes and Reservoirs Land Surface Analysis of the Florida Everglades Landsat: A Global Land-Observing Program Landslide Hazards „ A National Threat Landslide Types and Processes Laser Ablation ICP-Mass Spectrometry„A New Tool for Analyzing Metals in Tree Rings Latitudinal Variation in Carbon Storage Can Help Predict Changes in Swamps Affected by Global Warming Linking Selenium Sources to Ecosystems: San Francisco Bay-Delta Model Llano Grande Lake Bottom Sediments„A Chronicle of Water-Quality Changes in the Arroyo Colorado, South Texas, 1989…2001 Loss of Sagebrush Ecosystems and Declining Bird Populations in the Intermountain West: Priority Research Issues and Information Needs Lower Merced River and Mustang Creek Watersheds Selected for a National Water-Quality Study Managed Forest Reserves: Preserving Diversity Managing Floodplain Forests for Bird Diversity Maple Creek Watershed Selected for a National Water-Quality Study Mapping a Flood...Before It Happens Measuring and Mapping the Topography of the Florida Everglades for Measuring Human-Induced Land Subsidence from Space Mercury Contamination from Historical Gold Mining in California Mercury in Stream Ecosystems„New Studies Initiated by the U.S. Geological Survey Metal Stocks in Use in the United States Metallic Mineral Resource Assessment of the Humboldt River Basin, Northern Nevada Methods for Estimating Streamflow Statistics for Ungaged Streams in Maine Migratory Bird Pathways and the Gulf of Mexico Mineral Resources Program Spatial Data Available on the Web Modeling the Effects of Hydrology on Fire, Vegetation Dynamics, and their Interaction in the Florida Everglades Monitoring and Assessing our Nation�s Water Quality Monitoring Earthquake Shaking in Buildings to Reduce Loss of Life and Property Monitoring Earthquake Shaking in Federal Buildings Monitoring Ground Deformation from Space Monitoring Our Rivers and Streams Monitoring Surface-Water Quality in the Tongue River Watershed Monitoring the Water Quality of Lake Olathe, Johnson County, Kansas Monitoring Water-Level and Water-Quality Response to Conservation Measures in the Sparta Aquifer of the Union County, Arkansas Area Morgan Creek Watershed Selected for a National Water-Quality Study Mount Mazama and Crater Lake: Growth and Destruction of a Cascade Volcano National Water-Quality Assessment Program „ Cycle II Regional Assessments of Aquifers Native Plants for Effective Coastal Wetland Restoration Native Plants for Effective Coastal Wetland Restoration Native Plants for Effective Coastal Wetland Restoration Native Salamanders and Introduced Fish - Changing the Nature of Mountain Lakes and Ponds Natural Remediation of Arsenic Contaminated Ground Water Associated With Landfill Leachate Natural Restoration Basics for Wetlands Nevada Water-Resources Data New Hampshire�s stream-gaging network: status and future needs New Reports on our Nation�s Water Quality New Studies Initiated by the U.S. Geological Survey „ Effects of Nutrient Enrichment on Stream Ecosystems New Zealand Coal Resources Novel Geophysical And Geochemical Techniques Used To Study Submarine Groundwater Discharge In Biscayne Bay, Florida Nutrients in the Upper Mississippi River: Scientific Information to Support Management Decisions NWISWeb: New Site for the Nation�s Water Data Occurrence of Antibiotics in Water from Fish Hatcheries Occurrence of Methyl tert-Butyl Ether \(MTBE\) in Public and Private Wells, Rockingham County, New Hampshire Occurrence of Pesticides in Ground Water of the North Platte Natural Resources District, Nebraska, 2002 Ohio Water Microbiology Laboratory Oil and Gas Assessment of Central North Slope, Alaska, 2005 Oil and Gas Assessment of Yukon Flats, East-Central Alaska, 2004 One Hundred Years Of Streamflow Measurements In Massachusetts And Rhode Island Ordering Procedures for Photographic Enlargement Products„NAPP, NHAP, and Custom Ospreys in Oregon and the Pacific Northwest Overview„Development of a Geodatabase and Conceptual Model of the Hydrogeologic Units Beneath Air Force Plant 4 and Naval Air Station- Joint Reserve Base Carswell Field, Fort Worth, Texas PAGER„Rapid Assessment and Notification of an Earthquake�s Impact Parking Lot Sealcoat: A Major Source of Polycyclic Aromatic Hydrocarbons \(PAHs\) in Urban and Suburban Environments Pathways of Biological Production in Large Rivers People and Water in the Assabet River Basin, Eastern Massachusetts Pesticides in Ground Water - Albany County, Wyoming, 2003-04 Pesticides in Ground Water - Converse County, Wyoming, 2003-04 Pesticides in Ground Water - Crook County, Wyoming, 2000-01 Pesticides in Ground Water - Hot Springs County, Wyoming, 2003-04 Pesticides in Ground Water - Johnson County, Wyoming, 2000-01 Pesticides in Ground Water - Natrona County, Wyoming, 2001-02 Pesticides in Ground Water - Platte County, Wyoming, 2000-01 Pesticides in Ground Water - Sweetwater County, Wyoming, 2001-02 Pesticides in Ground Water - Teton County, Wyoming, 2001-02 Pesticides in Ground Water - Uinta County, Wyoming, 2002-03 PNSN…Pacific Northwest Seismograph Network Policy Analysis and Science Assistance Potential Effects of Individual Sewage Disposal System Density on Ground-Water Quality in the Fractured-Rock Aquifer in the Vicinity of Bailey, Park County, Colorado, 2001-2002 Prairie wetlands are important for carbon storage PRAIRIEMAP: A GIS Database for Prairie Grassland Management in Western North America Pre-1980 Eruptive History of Mount St. Helens, Washington Precipitation History of the Colorado Plateau Region, 1900…2000 Precipitation History of the Mojave Desert Region, 1893…2001 Predicting and Mapping Bird Abundances Predicting Future Mangrove Forest Migration in the Everglades Under Rising Sea Level Predicting the Effects of Hydrologic Restoration on Manatees along the Southwest Coast of Florida Probing the Los Angeles Basin„Insights Into Ground-Water Resources and Earthquake Hazards Progress on the Across Trophic Level System Simulation \(ATLSS\) Program Projecting Future Population Dynamics of the Florida Snail Kite in Relation to Hydrology Using EVERKITE Purple Loosestrife Volunteers Quality of Sediment Discharging From the Barton Springs System, Austin, Texas, 2000…2002 Quality of water in tributaries to the Upper Delaware River, New Jersey, water years 1985-2001 Quaternary Fault and Fold Database for the Nation Range-wide Conservation Assessment of Greater Sage-grouse and Sagebrush Habitats Rapid-Deployment Data-Collection Networks for Wildland Fire Applications Rare Earth Elements„Critical Resources for High Technology Rates of Landsliding and Cliff Retreat Along the Big Sur Coast, California„Measuring a Crucial Baseline Real-time ground-water-level monitoring in New Jersey, 2002 REAL-TIME GROUND-WATER-LEVEL MONITORING IN NEW JERSEY, 2002 Real-Time Surface-Water Monitoring In New Jersey, 2003 Recoverability and Vulnerability of Desert Ecosystems Resource Assessment of the Springfield, Herrin,Danville, and Baker Coals in the Illinois Basin Resources for Teachers and Students at the Upper Midwest Environmental Sciences Center Response of Birds to Thinning Young Douglas-fir Forests Restoring an Urban River„Polychlorinated Biphenyls and Other Contaminants in Bottom Sediment of the Lower Neponset River, Massachusetts Review of Aquifer Storage and Recovery in the Floridan Aquifer System of Southern Florida Robowell „ Providing Accurate and Current Water-Level and Water-Quality Data in Real Time for Protecting Ground-Water Resources Rocky Mountain Center for Conservation Genetics Rupture in South-Central Alaska„The Denali Fault Earthquake of 2002 SAGEMAP: A Web-based Spatial Dataset for Sage Grouse and Sagebrush Steppe Management in the Intermountain West SAM 2.1 -- A computer program for plotting and formatting surveying data for estimting peak discharges by the slope-area method San Francisco Bay Estuary Field Station Santa Cruz Field Station Satellite Image Atlas of Glaciers of the World Satellite Image Atlas of Glaciers of the World Science Data in Support of Environmental Health Studies in the U.S.-Mexico Border Region Science Data in Support of Environmental Health Studies in the U.S.-Mexico Border Region Science Support for Salt Pond Restoration and Management in South San Francisco Bay Science, Society, Solutions: An Introduction to the USGS Scientific Exchange Program with CERC and IBIW Selected Applications of Hydrologic Science and Research in Maryland, Delaware, and Washington, D.C., 2001-2003 Selenium Contamination and Remediation at Stewart Lake Waterfowl Management Area and Ashley Creek, Middle Green River Basin, Utah Sequoia and Kings Canyon Field Station Servicio de Mapas en Internet para la Salud Ambiental en la Región Fronteriza Entre los Estados Unidos y México ShakeMap„A Tool for Earthquake Response Sheet-flow Velocities and Factors Affecting Sheet-flow Behavior of Importance to Restoration of the Florida Everglades Shells as Recorders of Environmental Change„A Study in Florida Bay Shuttle Radar Topography Mission \(SRTM\) Simulated Effects of the Proposed Sulphur Gulch Reservoir Operations on Colorado River Quantity and Quality Sources of Ancient Maize Found in Chacoan Great Houses South Carolina Coastal Erosion Study South Fork Iowa River Watershed Selected for a National Water-Quality Study Southern California Landslides„An Overview Southern California„Wildfires and Debris Flows Spatial Decision Support Systems for Landscape Ecological Evaluations in the Southwest Florida Feasibility Study Species and Habitats of Federal Interest Steam Explosions, Earthquakes, and Volcanic Eruptions„ What�s in Yellowstone�s Future? Storms, Streams, and Reservoirs…Assessing Water Quality in the Cambridge, Massachusetts, Drinking-Water Source Area Streamflow Trends in the United States from the National Streamflow Information Program Streamgage Program StreamStats: A U.S. Geological Survey Web Application for Stream Information Studies by the U.S. Geological Survey on Sources, Transport, and Fate of Agricultural Chemicals Subsurface Exploration with the Cone Penetration Testing Truck Sugar Creek Watershed Selected for a ational Water-Quality Study Surface Water in Hawaii Surface-Water and Ground-Water Quality in the Powell Creek and Armstrong Creek Watersheds, Dauphin County, Pennsylvania, July-September 2001 Surface-Water Data and Statistics from U.S. Geological SurveyData-Collection Networks in New Jersey on the World Wide Web Surface-Water Monitoring in Watersheds of the Powder River Basin, 2005 Taking the Pulse of Colorado�s Front Range: Developing Regional Indicators of Environmental and Quality of Life Condition Testing Ground-Water-Management Alternatives in the Upper Charles River Basin, Eastern Massachusetts Testing Ground-Water-Management Alternatives in the Upper Charles River Basin, Eastern Massachusetts The 1999-2002 Drought in Maine„How Bad Was It? The Alaska Volcano Observatory „ Expanded Monitoring of Volcanoes Yields Results The Amphibian Research and Monitoring Initiative in the Pacific Northwest The Black Hills Hydrology Study The Cache la Poudre River, Colorado, as a Drinking-Water Source The Cooperative Forest Ecosystem Research Program The Global Mineral Resource Assessment Project The Great Flood of 1993 on the Upper Mississippi River„10 Years Later The Importance of Wood in Headwater Streams of the Oregon Coast Range The Influence of Ground Water on Nitrogen Delivery to the Chesapeake Bay The Kamchatkan Volcanic Eruption Response Team \(KVERT\) \(Russian\) The Lake Olathe Watershed„Understanding an Important Resource The Loads Of Selected Herbicides In The Ohio River Basin, 1997…2000 The Marine Realms Information Bank„A Coastal and Marine Digital Library The National Map - Elevation The National Map - Geographic Names The National Map - Hydrography The National Map - Orthoimagery The National Map Pilot Projects The National Research Program in the Hydrological Sciences The Natural Dispersal of Metals to the Environment in the Wulik River…Ikalukrok Creek Area, Western Brooks Range, Alaska The Norman Landfill Environmental Research Site: What Happens to the Waste in Landfills? The North Santiam River, Oregon, Water-Quality Monitoring network The Ongoing Pu�u �Ö�ö-Küpaianaha Eruption of Kïlauea Volcano, Hawai�i The Pallid Sturgeon: Scientific Investigations to Aid in the Recovery of Endangered Fish The Parkfield Experiment„Capturing What Happens in an Earthquake The Puÿu ÿÖÿö-Küpaianaha Eruption of Kïlauea Volcano, Hawaiÿi, 1983 to 2003 The Status of Streamflow and Ground-Water-Level Monitoring Networks in Maryland, 2005 The Tufas of Pyramid Lake, Nevada The U.S. Geological Survey in Maryland, Delaware, and Washington, D.C. The U.S. Geological Survey Land Remote Sensing Program The USGS Earthquake Hazards Program in NEHRP „ Investing in a Safer Future The USGS Role in Mapping the Nation�s Submerged Lands The Value of Hydrologic Data and Interagency Coordination in Protecting Drinking-Water Supplies in Minnesota Rivers The Value of Long-Term Monitoring in the Development of Ground-Water-Flow Models Tracking Changes in Yellowstone�s Restless Volcanic System Tracking polychlorinated biphenyls in the Millers River Basin, Massachusetts Tree Islands of the Florida Everglades „ Long-Term Stability and Response to Hydrologic Change Tree Swallows: A Nationwide Sentinel Species for Assessing and Monitoring Aquatic Contamination Trends in Streamflow Characteristics in Hawaii, 1913…2002 Trends in Streamflow, River Ice, and Snowpack for Coastal River Basins in Maine During the 20th Century Trends in the Water Budget of the Mississippi River Basin, 1949-1997 Tsunami Hazards„A National Threat Tundra Swans on the Upper Mississippi River U.S. Geological Survey 2002 Petroleum Resource Assessment of the National Petroleum Reserve in Alaska \(NPRA\) U.S. Geological Survey World Wide Web Information Upper Midwest Environmental Sciences Center Use of Amphibians as Indicators of Ecosystem Restoration Success Use of Continuous Seismic Profiling to Differentiate Geologic Deposits Underlying Selected Canals in Central and Western Nebraska Use of Continuous Seismic Profiling to Differentiate Geologic Deposits Underlying Selected Canals in Central and Western Nebraska User Interface for ATLSS Models USGS Activities in the Lake Tahoe Basin USGS Environmental Studies of the World Trade Center Area, New York City, after September 11, 2001 USGS Launches Online Database: Lichens in National Parks USGS National Assessment of Oil and Gas Online \(NOGA Online\) USGS Western Coastal and Marine Geology Team, 2004 USGS World Petroleum Assessment 2000 Using Maps in Genealogy Using Radar to Advance Migratory Bird Management: An Interagency Collaboration Using Radar to Understand Migratory Birds and Their Habitats: Critical Needs for the Gulf of Mexico Using Temperature to Study Stream-Ground Water Exchanges Using The National Flood Frequency Program, Version 3: A Computer Program For Estimating Magnitude And Frequency Of Floods For Ungaged Sites Volcano Hazards…A National Threat Vulnerability of U.S. National Parks to Sea-Level Rise and Coastal Change Wastewater Chemicals in Colorado�s Streams and Ground Water Water Programs in California Water quality in Big Cypress National Preserve and Everglades National Park, 1960-2000 Water Quality of the Boulder Creek Watershed, Colorado Water Use for Irrigation in Michigan, 2001 Water Use in Kansas, 1990-2000 Water-Level Changes in the High Plains Aquifer, Predevelopment to 2001, 1999 to 2000, and 2000 to 2001 Water-Level Changes in the High Plains Aquifer, Predevelopment to 2002, 1980 to 2002, and 2001 to 2002 Water-Level Changes in the High Plains Aquifer, Predevelopment to 2003 and 2002 to 2003 Water-Quality Assessment of the Central Nebraska Basins-„ Water-Quality Assessment of the San Joaquin…Tulare Basins Entering a New Decade WaterWatch „ Maps and graphs of current water resources conditions Western Phosphate Field, U.S.A.: Science in Support of Land Management What are Volcano Hazards? What happens to nutrients in offstream reservoirs in the lower South Platte River Basin? Why Study Lakes? An Overview of USGS Lake Studies in Wisconsin Wildfire Hazards…A National Threat Wildlife Health: Thirty Years of Science Wildlife: Terrestrial and Endangered Resources Program

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U.S. Department of the Interior | U.S. Geological Survey URL: http://walrus.wr.usgs.gov/infobank/programs/html/factsheets/factsheets.html Page Contact: InfoBank staff Page Last Modified: Fri Mar 6 00:16:30 PST 2009  (wcs)