Geographic Information Systems Three-letter Codes for BLM GIS Data
Data Page | Projections | Three-Letter Codes | Map
Domains
Categories
DOMAIN: basic
Description: single-theme-based information
CATEGORY:archeology
Description: archeological data
| Theme Code: | Theme Name: | Description: | Back to Top |
| ars | archeological survey | archeological survey transects and locations |
| har | historic arc site | historic archeological site data |
| pal | paleontological loc | paleontological locations |
| par | prehistoric arc site | prehistoric archeological site data |
| pas | paleontological surv | paleontological survey location |
CATEGORY: communications
Description: communications information such as radio sites, cell phonecoverage areas, etc
| Theme Code | Theme Name: | Description: | Back to Top |
| cms | communications site | comm sites such as repeater, base station, remote base station, tower, etc |
CATEGORY: dem
Description: all dem data
| Theme Code: | Theme Name: | Description: | Back to Top |
| dem | dem grid | all dem (digital elevation model) grids |
| lat | lattices created | lattices created from dem functions in AI from dem |
CATEGORY: designated_boundary
Description: jurisdictional boundary based on policy decision
| Theme Code: | Theme Name: | Description: | Back to Top |
| acc | acec | area of critical environmental concern |
| asb | assembly district | California assembly district boundary |
| blm | BLM | BLM units - i.e. BLM field offices |
| cdf | CA dept of for ru | CA Dept. of Forestry ranger units |
| cen | census tract | U.S. Bureau of Census tract information |
| cgs | congressional dis | congressional districts |
| cit | city or town | city limit boundaries or locations |
| cst | coast | coast line of california from NOAA (National Oceanic and Atmospheric Administration) |
| cty | county | counties in California |
| lcl | locale name | locale names from GNIS (Geographic Names Information System) |
| mil | military land | military land |
| nat | natural area | natural area designations |
| nca | national conservation area | national conservation areas in CA |
| ncl | nclwma | national conservation lands and wildlife management areas |
| nfs | Forest Service | National Forest System |
| nmt | National Monument | National Monument |
| nps | park service | National Park Service |
| ppl | populated place | populated place such as cities, towns, etc. |
| res | Indian reservation | Indian reservations |
| rsv | reserve | preserve or reserve area, usually botanical or zoological in nature |
| sen | senate district | California senate districts |
| sta | state | state or province |
| stp | state park | state parks and state preserves |
| wld | wilderness | designated wilderness areas |
| wsa | wilderness | wilderness study areas |
| wsr | wild & scenic river | wild & scenic river |
CATEGORY: ecology
Description: eco regions, vegetation, gap analysis
| Theme Code: | Theme Name: | Description: | Back to Top |
| eco | ecologic region | ecologic region |
| ein | ecological inv. data | inventory transects or areas, usually for combined sensitive animal and plant surveys |
| ldc | landcover use designation | landcover use designation such as vegetation type, urban class, etc. |
| pfc | proper fcn condition | proper fcn condition for stream/riparian ecology |
| rip | riparian zone | riparian locations and habitat |
| sms | stream monitoring sites | stream monitoring sites |
| whr | wildlife habitat relationship | wildlife habitat relationship data from whr codes in gap analysis data |
CATEGORY: fauna
Description: all information having to do with animals
| Theme Code: | Theme Name: | Description: | Back to Top |
| ahb | animal habitat | animal habitat data including threatened and endangered species |
| ain | animal transect | inventory transects or areas |
| anl | animal location | animal locations including threatened and endangered species |
| arg | animal range | species ranges for animals; generalized areas that include known, potential and non-habitat |
| dtc | desert tortoise categories | desert tortoise categories |
CATEGORY: fire_mgmt
Description: management zone, jurisdiction, fire station, etc
| Theme Code: | Theme Name: | Description: | Back to Top |
| cru | cdf ranger unit | California Department of Forestry and Fire Protection ranger units |
| dpa | direct fire protect | direct fire protection locations |
| fbk | firebreak | roads and other lineaments defined as firebreak boundaries |
| fed | federal fire responsibility areas | federal fire responsibility areas |
| fmz | fire management zone | fire management zone location |
| hfi | fire history | wildfire history |
| nfs | nfs fire responsibility | National Forest Service fire responsibility |
| pfi | prescribed fire | prescribed fire locations, proposed and initiated |
CATEGORY: flora
Description: all information having to do with plants
| Theme Code: | Theme Name: | Description: | Back to Top |
| agr | agriculture | current and fallow agriculture |
| cal | cal veg data | cal veg mapping project data |
| gap | gap analysis data | gap analysis data |
| her | herbarium collection location | location of herbarium collection sites, for botanical specimens |
| hvg | historical veg | historical vegetation location, boundary or area of extent |
| nox | noxious weeds | noxious weeds |
| phb | plant habitat | plant habitat including threatened and endangered species |
| pin | plant transect | inventory transects or areas |
| plt | plant location | plant locations, including threatened and endangered species |
| prg | plant range | species ranges for plants; generalized areas that include know, potential and non-habitat |
| veg | vegetation | current and/or updated vegetation |
| wmp | weed management plan polygon | weed management plan polygons to mirco-manage weed eradication program |
| | | |
CATEGORY: forestry
Description: timber production, capability classifications, etc.
| Theme Code: | Theme Name: | Description: | Back to Top |
| fin | forest inventory | operation inventory, extensive forest inventory, national forest health informtion |
| frf | reforestation | tree planting, etc. |
| fsi | forest stand improv. | all forest improvements, tsi, release, spray projects, density projects |
| tpc | timber production | timber production capability classes |
| tsh | timber sale history | history of all timber sales |
| | | |
CATEGORY: hazardous_material
Description: contamination/waste/sample site, health hazard area, superfund location
| Theme Code: | Theme Name: | Description: | Back to Top |
| haz | hazardous mat locn | hazardous material locations, including both anthropic and naturally occurring hazards |
| sup | "superfund" location | epa-designated 'superfund' locations (cercla) |
| | | |
CATEGORY: hillshade
Description: all hillshade data
| Theme Code: | Theme Name: | Description: | Back to Top |
| hsh | hillshade grid | all hillshade grids regardless of extent, or display variables |
CATEGORY: hydrography
Description: water information including precipitation data
| Theme Code: | Theme Name: | Description: | Back to Top |
| fha | flood hazard area | flood hazard area |
| huc | hydrologic unit | hydrologic unit codes/boundary |
| hyd | hydrographic data | hydrographic data, streams, rivers, ponds and lakes, including man-made features, canals etc |
| pcp | precipitation data | precipitation data |
| wim | water improvement | water improvements such as wildlife guzzlers, stock tanks, wind mills for water, dams, rec site |
| wsh | watershed boundary | hydrographic watershed boundary |
CATEGORY: hypsography
Description: all contour data
| Theme Code: | Theme Name: | Description: | Back to Top |
| cnt | contour | derived from dems |
| elv | elevation data | spot elevation data |
| hyp | hypsography | scanned contour data |
CATEGORY: lands
Description: ownership, acquisition, disposal, row, etc
| Theme Code: | Theme Name: | Description: | Back to Top |
| own | ownership | surface ownership |
| row | right-of-way | linear right-of-way location such as road, pipeline and communication site locations |
| wth | withdrawal | withdrawal action |
CATEGORY: law_enforcement
Description: patrol, incident, trespass
| Theme Code: | Theme Name: | Description: | Back to Top |
| tps | trespass | any and all trespass |
CATEGORY: minerals_mgmt
Description: potential, leases, power plant, etc.
| Theme Code: | Theme Name: | Description: | Back to Top |
| eng | energy | energy minerals |
| gem | geology energy | geology energy minerals and inventory |
| gra | geothermal resource areas | geothermal resource areas |
| ind | industrial | industrial/non-metallic minerals |
| kgs | known geothermal pot | known geothermal potential locations |
| loc | locatable | locatable location, usually mining claim |
| lsb | oil,gas,geo lease | oil, gas, geothermal lease locations and well locations |
| min | fed mineral estate | federal mineral ownership estate |
| mls | mining ind loc sys | mining industry location system, mineral occurrence locations from bureau of mines |
| mne | mine location | mine locations, including extent of disturbed areas |
| mns | mine | mines |
| nso | no-surface occupancy | non-surface occupancy locations for restrictions of oil and gas exploration activities |
| ogp | oil&gas potential | oil and gas discovery and production potential |
| pps | power plant site | power plant site |
| slm | saleable material | saleable material locations |
CATEGORY: modern_culture
Description: man made items, NOT Archeology
| Theme Code: | Theme Name: | Description: | Back to Top |
| fac | facility | facilities |
| fce | fence and barrier | fence and barriers, including ohv and range related fences |
| lfl | landfill | landfill |
| nfs | forest system | National Forest System |
| wth | weather station | weather stations |
CATEGORY: physiography
Description: soil, land form, geology
| Theme Code: | Theme Name: | Description: | Back to Top |
| asp | aspect data | aspect data |
| flt | fault | geologic fault locations and trend, may also include strike and dip locations |
| geo | bedrock geology | bedrock geology, formations and outcrops, sampling and hobby mineral locations |
| gmp | geology map sheet | index to location of geology map sheets, including non-quad defined extents |
| ldf | landform | landforms |
| lsl | landslide | landslides, quaternary geology and mass-wasting deposits |
| slp | slope | slope grids or coverages |
| sls | soils data | soil boundary, sampling points |
| smt | summit | mountain summits |
| soi | soil | soil types |
CATEGORY: planning
Description: rmp, operating area, mgmt plan
| Theme Code: | Theme Name: | Description: | Back to Top |
| hmp | habitat mgmt plan | habitat management plan |
| mgp | management plan | management plans |
| muc | multiple use class | multiple use class designation designation |
| plb | planning | misc planning boundary not covered by another theme |
| rmp | res mgmt plan bdry | resource management plan boundary interior to a field office |
| stb | study area boundary | study areas associated with planning boundaries |
| zon | local zoning desig | county and community zoning designation |
CATEGORY: range_mgmt
Description: improvement, allotment, inventory, monitoring, utilization
| Theme Code: | Theme Name: | Description: | Back to Top |
| grz | grazing allotment | grazing allotment |
| hao | herd area | original designated herd area for wild horse and burros |
| hma | herd management | herd management area for wild horse and burros |
| rac | range action committee | range action committee |
| rge | range utilization | range grazing utilization and potential |
| rim | range improvement | range improvement projects - not water improvements |
CATEGORY: recreation
Description: rec area, vehicle designation, visitor mgmt zone, shooting designation, special mgmt area
| Theme Code: | Theme Name: | Description: | Back to Top |
| bhz | bear hunting zone | bear hunting zones |
| hnt | hunting area | hunting areas |
| nsz | no shooting zone | no shooting zones |
| ohv | off-hiway-vehicle | off-highway-vehicle designation areas including event routes |
| pct | pacific crest trail | pacific crest trail |
| phz | pronghorn hunting | pronghorn antelope hunting zones |
| rfc | recreation facility | recreation facilities |
| rma | recreation mgmt area | recreation mgmt area |
| trl | trail | trails for non-motorized use, including biking |
| vrm | visual res mgmt | visual resource management area location, boundary or area of extent |
CATEGORY: transportation
Description: road, railroad, pipeline, transmission line, transportation plan
| Theme Code: | Theme Name: | Description: | Back to Top |
| afd | airfield | airfield locations |
| hwy | highway | state, federal, interstate highways |
| mrt | major route | major routes; more roads than highways, but fewer roads that entire rts data set; process efficiency |
| ptl | pipe & transmission | pipe and transmission lines |
| rrd | railroad | railroads |
| rds | route | all roads and trails including non-motorized |
DOMAIN: reference_system
Description: data having to do with coordinate systems
CATEGORY:photo_index
Description: aerial photo, photo index, image index
| Theme Code: | Theme Name: | Description: | Back to Top |
| aix | airphoto index | airphoto indexes |
| iix | image index | image indexes |
| pix | photo index | photo indexes |
CATEGORY: plss
Description: plss including land grants, gcdb, geodetic control, etc.
| Theme Code: | Theme Name: | Description: | Back to Top |
| ctl | GCDB control | GCDB control |
| gcd | GCDB | GCDB data (geographic coordinate data base) data |
| mqd | meridian | plss meridians by quadrant (NE,NW,SE,SW) |
| pls | public land survey | public land survey system, including section lines, township lines, and land grants |
| sps | special survey | special surveys |
| twp | township | townships |
CATEGORY: projection_file
Description: conversion files from one projection to another
CATEGORY: quad_frame
Description: tic, quadframes, lat/long & utm grid
| Theme Code: | Theme Name: | Description: | Back to Top |
| qdf | quad frame | 24k, 100k, 250k, 1 min quad frames |
| spz | state plane zone | state plane zones |
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