STATE OF PENNSYLVANIA 1 CONTENTS BASE LINE DESIGNATION STATE COUNTY QUAD BUTLER PENNSYLVANIA BUTLER N400794 DALTON (DESTROYED) PENNSYLVANIA LACKAWANNA N410754 HARRISBURG CBL (1993 REMEASURED) PENNSYLVANIA YORK N400763 LOCK HAVEN PENNSYLVANIA CLINTON N410772 NOCKAMIXON CBL (1993 REMEASURED) PENNSYLVANIA BUCKS N400752 OGLE PENNSYLVANIA SOMERSET N400783 SPROUL PENNSYLVANIA BLAIR N400782 TITUSVILLE PENNSYLVANIA CRAWFORD N360794 WARMINSTER CBL PENNSYLVANIA BUCKS N400752 1 US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N400794 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: BUTLER PENNSYLVANIA ROCKVILLE MD 20852 PROJECT ACCESSION NUMBER: G16309 BUTLER COUNTY NEAREST TOWN: BUTLER LIST OF ADJUSTED DISTANCES (JULY 29,1987) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 100.000 150 99.472 149.9983 149.9992 0.1 0 100.000 430 98.712 429.9955 429.9974 0.5 0 100.000 1020 95.424 1019.9890 1019.9993 0.8 150 99.472 430 98.712 279.9972 279.9982 0.5 150 99.472 1020 95.424 869.9908 870.0002 0.7 430 98.712 1020 95.424 589.9936 590.0028 0.5 DESCRIPTION OF BUTLER BASE LINE YEAR MEASURED: 1987 CHIEF OF PARTY: MTL THIS BASE LINE IS LOCATED 12.8 KM (8.0 MI) SOUTH OF BUTLER, 1.6 KM (1.0 MI) WEST OF STATE ROUTE 8 AT THE BUTLER COUNTY AIRPORT, RUNNING PARALLEL AND SOUTH OF THE RUNWAY. TO REACH THE BASE LINE FROM THE JUNCTION OF U.S.ROUTE 422 AND STATE ROUTE 8, GO SOUTH ON STATE ROUTE 8 FOR 13.0 KM (8.1 MI) TO A TRAFFIC SIGNAL AND A PAVED ROAD RIGHT, AIRPORT ROAD. TURN RIGHT AND GO WEST ON AIRPORT ROAD FOR 1.0 KM (0.6 MI) TO A PAVED SIDE ROAD LEFT, THREE DEGREE ROAD. TURN LEFT AND FOLLOW THE ROAD SOUTH AND THEN WEST ON THREE DEGREE ROAD FOR 0.8 KM (0.5 MI) TO THE FIRST PAVED SIDE ROAD ENTRANCE TO THE AIRPLANE HANGARS AREA. TURN RIGHT AND GO NORTH ON THE PAVED SIDE ROAD FOR 0.24 KM (0.15 MI) TO THE 0 METER POINT DIRECTLY EAST, 120 METERS (394 FT) FROM THE CENTERLINE OF THE ROAD AND SOUTH OF THE RUNWAY. THE BASE LINE IS AN EAST-WEST LINE WITH THE 0 METER POINT SET AT THE EAST END. THE CBL CONSISTS OF THE 0, 150, 430, AND 1020 METER POINTS. ALL POINTS ARE SET ON A LINE RUNNING PARALLEL AND SOUTH OF THE RUNWAY. THE 0 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "BUTLER 0", SET IN THE TOP OF A 30 CM (12 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 1.8 METERS (5.9 FT) NORTH OF AN ORANGE NGS WITNESS POST, 120.0 METERS (394.0 FT) EAST OF A BLACK TOP ROAD CENTERLINE, AND 45.0 METERS (147.6 FT) SOUTH OF THE SOUTH EDGE OF THE RUNWAY. THE 150 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "BUTLER 150", SET IN THE TOP OF A 30 CM (12 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 1.8 METERS (5.9 FT) NORTH OF AN ORANGE NGS WITNESS POST, 33.0 METERS (108.3 FT) WEST OF A BLACK TOP ROAD CENTERLINE, AND 44.0 METERS (144.4 FT) SOUTH OF THE SOUTH EDGE OF THE RUNWAY. THE 430 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "BUTLER 430", SET IN THE TOP OF 30 CM (12 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 1.8 METERS (5.9 FT) NORTH OF AN ORANGE NGS WITNESS POST AND 44.0 METERS (144.4 FT) SOUTH OF THE SOUTH EDGE OF THE RUNWAY. THE 1020 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "BUTLER 1020", SET IN THE TOP OF A 30 CM (12 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 1.8 METERS (5.9 FT) EAST OF AN ORANGE NGS WITNESS POST, AND 43 METERS (141.1 FT) SOUTH- SOUTHWEST OF THE SOUTHWEST CORNER OF THE WEST END OF THE RUNWAY. USER NOTES: CONTACT THE AIRPORT MANAGER BEFORE USING THIS BASE LINE. TELEPHONE: (412) 586-7786. UNDER NO CIRCUMSTANCES DRIVE ON OR CROSS RUNWAY. THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH PENNSYLVANIA LAND SURVEYORS ASSOCIATION AND PENNSYLVANIA D.O.T. FOR FURTHER INFORMATION CONTACT MR. RICHARD G. BACH, P.L.S., 21235 RT. 19, ZELIENOPLE, PA., 16063. TELEPHONE: (412) 452-6662. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N410754 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: DALTON PENNSYLVANIA ROCKVILLE MD 20852 - OCTOBER 29, 1986 PROJECT ACCESSION NUMBER: G16309 LACKAWANNA COUNTY LIST OF ADJUSTED DISTANCES (JANUARY 29,1980) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 304.80 150 303.18 149.9961 150.0048 0.3 0 304.80 450 300.05 450.1342 450.1592 0.5 0 304.80 1100 296.25 1100.7693 1100.8025 0.7 150 303.18 450 300.05 300.1381 300.1544 0.4 150 303.18 1100 296.25 950.7732 950.7985 0.6 450 300.05 1100 296.25 650.6351 650.6462 0.4 DESCRIPTION OF DALTON BASE LINE YEAR MEASURED: 1979 CHIEF OF PARTY: CWW * * * DALTON BASE LINE WAS REPORTED DESTROYED * * * THE BASE LINE IS LOCATED IN THE TOWNSHIP OF LA PLUME AND IS SET IN THE CENTER MEDIAN OF UNITED STATES HIGHWAYS 6 AND 11, JUST NORTH OF THE NORTHERN DALTON BOROUGH LINE BETWEEN STRAIGHT LINE DIAGRAM STATIONS 523+50 AND 559+62. TO REACH THE 0 METER POINT FROM THE JUNCTION OF STATE HIGHWAY 438 AND UNITED STATES HIGHWAYS 6 AND 11 IN LA PLUME, GO SOUTH ON HIGHWAYS 6 AND 11 FOR 0.5 MILE TO THE DALTON BOROUGH LINE AND THE 0 METER POINT ON THE LEFT. THE 0 METER POINT IS 59 FEET NORTH OF THE CENTER OF A CROSSOVER, 22 FEET EAST OF THE CENTER LINE OF THE SOUTH BOUND LANES OF HIGHWAYS 6 AND 11, 22 FEET WEST OF THE CENTER LINE OF THE NORTH BOUND LANES OF HIGHWAYS 6 AND 11 AND 3.0 FEET EAST OF A METAL PENNSYLVANIA DEPARTMENT OF HIGHWAYS WITNESS POST. ALL OF THE MARKS ARE STANDARD PENNSYLVANIA DEPARTMENT OF TRANSPORTATION SURVEY CONTROL MARK DISKS EXCEPT FOR THE 150 METER POINT WHICH IS A PENNSYLVANIA DEPARTMENT OF TRANSPORTATION BENCH MARK DISK. ALL OF THE DISKS ARE SET IN THE TOP OF 6-INCH ROUND CONCRETE MONUMENTS THAT ARE FLUSH WITH THE GROUND. THE 0 METER POINT IS STAMPED 0 1977, THE OTHER MARKS HAVE NOT BEEN STAMPED. THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT ON THE SOUTH END. IT IS MADE UP OF THE 0, 150, 450, AND 1100 METER POINTS. ALL OF THE MARKS ARE SET IN THE CENTER MEDIAN OF HIGHWAYS 6 AND 11 AND HAVE PENNSYLVANIA DEPARTMENT OF HIGHWAYS WITNESS POSTS BY THEM. THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION. FOR FURTHER INFORMATION CONTACT MR. DONALD E. WILBUR, PENNSYLVANIA DEPARTMENT OF TRANSPORTATION, PHOTOGRAMMETRY AND SURVEYS, BUILDING 28, HARRISBURG INTERNATIONAL AIRPORT, MIDDLETOWN, PENNSYLVANIA 17057. TELEPHONE 717-787-1601. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N400763 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: HARRISBURG CBL PENNSYLVANIA ROCKVILLE MD 20852 - MAY 17, 1993 PROJECT ACCESSION NUMBER: 16309 YORK COUNTY NEAREST TOWN: LEWISBERRY LIST OF ADJUSTED DISTANCES (MAY 12, 1993) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0-POINT 1976 182.880 150 1976 177.774 149.9994 150.0863 0.1 0-POINT 1976 182.880 425-POINT 1976 169.535 424.7450 424.9546 0.1 0-POINT 1976 182.880 1400 1976 173.433 1400.3354 1400.3672 0.2 150 1976 177.774 425-POINT 1976 169.535 274.7456 274.8691 0.1 150 1976 177.774 1400 1976 173.433 1250.3355 1250.3431 0.1 425-POINT 1976 169.535 1400 1976 173.433 975.5892 975.5970 0.1 A TAPE CALIBRATION MONUMENT IS SET 100 FEET FROM THE 1400-METER POINT. THE REDUCED MARK-TO-MARK DISTANCE IS 100.07 FEET. DESCRIPTION OF HARRISBURG BASE LINE YEAR MEASURED: 1979 YEAR REMEASURED: 1993 CHIEF OF PARTY: KM THE BASE LINE IS LOCATED ABOUT 17.7 KM (11.0 MI) SOUTH OF HARRISBURG, 17.7 KM (11.0 MI) NORTHWEST OF YORK, 5.5 KM (3.4 MI) NORTHEAST OF ROSSVILLE, AND 3.2 KM (2.0 MI) SOUTH OF LEWISBERRY IN THE VILLAGE OF MAYTOWN. THE BASE LINE RUNS ALONG AND IS APPROXIMATELY PARALLEL WITH THE SOUTHEAST EDGE OF STATE HIGHWAY 177. THE BASE LINE IS A NORTHEAST-SOUTHWEST LINE WITH THE 0-METER POINT ON THE NORTHEAST END. IT CONSISTS OF THE 0, 150, 425, AND 1400 METER POINTS WITH A 100-FOOT TAPE CALIBRATION STATION LOCATED OFF LINE AND SOUTHWEST OF THE 1400-METER POINT. TO REACH THE 0-METER POINT FROM THE JUNCTION OF STATE HIGHWAYS 177 AND 382, LOCATED ON THE WEST SIDE OF LEWISBERRY, GO SOUTHWESTERLY ON STATE HIGHWAY 177 FOR 3.6 KM (2.2 MI) TO THE 0-METER POINT ON THE LEFT. THE 0-METER POINT IS A STANDARD NGS HORIZONTAL CONTROL DISK STAMPED "0-POINT 1976" SET IN THE TOP OF A 36 CM (14 IN) DIAMETER CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 48.4 M (158.8 FT) NORTHEAST OF THE CENTERLINE OF A GRAVEL ENTRANCE DRIVE TO A FIELD, 6.8 M (22.3 FT) SOUTHEAST OF THE CENTERLINE OF STATE HIGHWAY 177, 4.1 M (13.5 FT) NORTHWEST OF A METAL FENCE, AND 1.2 M (3.9 FT) NORTHWEST OF A METAL WITNESS POST. THE 150-METER POINT IS A STANDARD NGS HORIZONTAL CONTROL DISK STAMPED "150 1976" SET IN THE TOP OF A 28 CM (11 IN) DIAMETER CONCRETE POST RECESSED 5 CM (2 IN) BELOW THE SURFACE OF THE GROUND. IT IS 12.1 M (39.7 FT) NORTHEAST OF A METAL FENCE CORNER, 7.0 M (23.0 FT) SOUTHEAST OF THE CENTERLINE OF STATE HIGHWAY 177, 4.3 M (14.1 FT) NORTHWEST OF A METAL FENCE, AND 1.2 M (3.9 FT) NORTH-NORTHWEST OF A METAL WITNESS POST. THE 425-METER POINT IS A STANDARD NGS HORIZONTAL CONTROL DISK STAMPED "425-POINT 1976" SET IN THE TOP OF A 25 CM (10 IN) DIAMETER CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 123.2 M (404.2 FT) NORTHEAST OF THE CENTERLINE OF ALPINE ROAD, 7.3 M (24.0 FT) SOUTHEAST OF THE CENTERLINE OF STATE HIGHWAY 177, AND 1.0 M (3.3 FT) NORTHWEST OF A METAL WITNESS POST. THE 1400-METER POINT IS A STANDARD NGS HORIZONTAL CONTROL DISK STAMPED "1400 1976" SET IN THE TOP OF A 25 CM (10 IN) DIAMETER CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 48.7 M (159.8 FT) NORTHEAST OF WOODEN UTILITY POLE NO. DJK11, 6.8 M (22.3 FT) SOUTHEAST OF THE CENTERLINE OF STATE HIGHWAY 177, AND 1.2 M (3.9 FT) NORTHWEST OF A METAL WITNESS POST. THE 100-FOOT TAPE CALIBRATION STATION IS A BLANK DISK STAMPED "100 FT" SET IN THE TOP OF A 33 CM (13 IN) DIAMETER CONCRETE POST PROJECTING 5 CM (2 IN) ABOVE THE SURFACE OF THE GROUND. IT IS 18.2 M (59.8 FT) NORTHEAST OF WOODEN UTILITY POLE NO. DJK11, 10.9 M (35.8 FT) SOUTHEAST OF THE CENTERLINE OF STATE HIGHWAY 177, AND 1.0 M (3.3 FT) NORTHWEST OF A FIBERGLASS WITNESS POST. USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY. THIS BASE LINE DOES NOT MEET CURRENT NGS SITE SPECIFICATIONS. SAFETY PRECAUTIONS ARE RECOMMENDED DUE TO TRAFFIC ON THE HIGHWAY. THIS CALIBRATION BASE LINE WAS ESTABLISHED AND REMEASURED WITH ASSISTANCE FROM THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION (PENDOT). FOR MORE INFORMATION PLEASE CONTACT MR. EMERSON BORMAN, PENDOT, PHOTOGRAMMETRY AND SURVEYS, BUILDING 28, HARRISBURG INTERNATIONAL AIRPORT, MIDDLETOWN, PA 17057. TELEPHONE (717) 783-1518. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N410772 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: LOCK HAVEN PENNSYLVANIA ROCKVILLE MD 20852 - OCTOBER 29, 1986 PROJECT ACCESSION NUMBER: G16309 CLINTON COUNTY LIST OF ADJUSTED DISTANCES (JANUARY 29,1980) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 168.52 515 169.27 515.3715 515.3721 0.4 0 168.52 665 169.48 665.3962 665.3969 0.4 0 168.52 1129 172.42 1129.4704 1129.4771 0.6 515 169.27 665 169.48 150.0247 150.0248 0.2 515 169.27 1129 172.42 614.0987 614.1068 0.4 665 169.48 1129 172.42 464.0740 464.0834 0.4 DESCRIPTION OF LOCK HAVEN BASE LINE YEAR MEASURED: 1979 CHIEF OF PARTY: CWW THE BASE LINE IS LOCATED ON THE EAST SIDE OF LOCK HAVEN AND ALONG THE SOUTHERN EDGE OF THE NORTHERN TAXIWAY AT THE W. T. PIPER AIRPORT. THE 0 METER POINT IS SET IN THE GRASSY BANK ON THE EAST END OF THE AIRPORT. IT IS 130 FEET NORTHWEST OF A STOP SIGN, 25 FEET WEST OF THE CENTER LINE OF THE PAVED ROAD AND 15 FEET EAST OF THE EAST EDGE OF THE TAXIWAY. ALL OF THE MARKS ARE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION SURVEY CONTROL MARK DISKS EXCEPT THE 515 METER POINT WHICH IS A PENNSYLVANIA DEPARTMENT OF TRANSPORTATION BENCH MARK DISK. ALL OF THE DISKS ARE SET IN THE TOP OF 10-INCH ROUND CONCRETE MONUMENTS THAT ARE FLUSH WITH THE GROUND. THE MARKS ARE NOT STAMPED. THE BASE LINE IS A EAST-WEST LINE WITH THE 0 METER POINT ON THE EAST END. IT IS MADE UP OF THE 0, 515, 665, AND 1129 METER POINTS. ALL OF THE MARKS ARE SET ON AN IMAGINARY LINE THAT RUNS PARALLEL TO AND ABOUT 11 FEET SOUTH OF THE NORTHERN TAXIWAY. THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION. FOR FURTHER INFORMATION CONTACT MR. DONALD E. WILBUR, PENNSYLVANIA DEPARTMENT OF TRANSPORTATION, PHOTOGRAMMETRY AND SURVEYS, BUILDING 28, HARRISBURG INTERNATIONAL AIRPORT, MIDDLETOWN, PENNSYLVANIA 17057. TELEPHONE 717-787-1601. NOTE--CONTACT MR. MELVIN BREINING THE AIRPORT MAINTENANCE ENGINEER AT 717-748-6711 FOR PERMISSION TO USE THE BASE LINE. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N400752 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: NOCKAMIXON CBL PENNSYLVANIA ROCKVILLE MD 20852 - JULY 14, 1993 PROJECT ACCESSION NUMBER: 16309 BUCKS COUNTY NEAREST TOWN: QUAKERTOWN LIST OF ADJUSTED DISTANCES (MAY 28, 1993) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 1977 131.710 858 142.904 858.5180 858.5909 0.1 0 1977 131.710 1008 146.941 1008.4255 1008.5406 0.2 0 1977 131.710 1283 154.233 1283.5212 1283.7188 0.3 858 142.904 1008 146.941 149.9074 149.9618 0.1 858 142.904 1283 154.233 425.0028 425.1538 0.2 1008 146.941 1283 154.233 275.0954 275.1920 0.1 DESCRIPTION OF NOCKAMIXON BASE LINE YEAR MEASURED: 1979 YEAR REMEASURED: 1993 CHIEF OF PARTY: KM THE BASE LINE IS LOCATED ABOUT 24.0 KM (14.9 MI) SOUTHEAST OF BETHLEHEM AND 16.0 KM (9.9 MI) NORTHEAST OF QUAKERTOWN AT THE NORTHERN END OF NOCKAMIXON STATE PARK. THE BASE LINE RUNS ALONG AND IS APPROXIMATELY PARALLEL WITH THE SOUTHEASTERN EDGE OF STATE HIGHWAY 563. THE BASE LINE IS A NORTHEAST-SOUTHWEST LINE WITH THE 0-METER POINT ON THE SOUTHWEST END. IT CONSISTS OF THE 0, 858, 1008, AND 1283 METER POINTS. TO REACH THE 0-METER POINT FROM THE JUNCTION OF STATE HIGHWAYS 412 AND 563, LOCATED NORTHWEST OF HARROW, GO SOUTHWEST ON STATE HIGHWAY 563 FOR 1.2 KM (0.7 MI) TO THE NORTHEAST END OF THE CONCRETE BRIDGE OVER LAKE NOCKAMIXON. CONTINUE SOUTHWEST ON STATE HIGHWAY 563 FOR 0.45 KM (0.28 MI) TO THE 0-METER POINT ON THE LEFT. THE 0-METER POINT IS A PENNSYLVANIA DEPARTMENT OF TRANSPORTATION SURVEY CONTROL DISK STAMPED "0 1977" SET IN THE TOP OF A 15 CM (6 IN) DIAMETER CONCRETE POST RECESSED 2.5 CM (1 IN) BELOW THE SURFACE OF THE GROUND. IT IS 149.3 M (489.8 FT) SOUTHWEST OF THE CENTERLINE OF THE HAYCOCK BOAT ACCESS ROAD, 10.5 M (34.4 FT) NORTHEAST OF AN ENTRANCE SIGN FOR THE HAYCOCK BOAT ACCESS ROAD, 8.4 M (27.6 FT) SOUTHEAST OF THE CENTERLINE OF STATE HIGHWAY 563, AND 3.0 M (9.8 FT) NORTHWEST OF A FIBERGLASS WITNESS POST. THE 858-METER POINT IS A PENNSYLVANIA DEPARTMENT OF TRANSPORTATION SURVEY CONTROL DISK STAMPED "858" SET IN THE TOP OF A 15 CM (6 IN) DIAMETER CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 27.1 M (88.9 FT) SOUTHWEST OF WOODEN UTILITY POLE NO. 11, 12.5 M (41.0 FT) SOUTHEAST OF THE CENTERLINE OF STATE HIGHWAY 563, 6.5 M (21.3 FT) NORTHEAST OF THE EASTERN CORNER OF A RECTANGULAR CONCRETE DRAINAGE GRATE, AND 1.0 M (3.3 FT) NORTHWEST OF A FIBERGLASS WITNESS POST. THE 1008-METER POINT IS A PENNSYLVANIA DEPARTMENT OF TRANSPORTATION SURVEY CONTROL DISK STAMPED "1008" SET IN THE TOP OF A 15 CM (6 IN) DIAMETER CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 56.0 M (183.7 FT) SOUTHWEST OF WOODEN UTILITY POLE NO. E9, 12.3 M (40.4 FT) SOUTHEAST OF THE CENTERLINE OF STATE HIGHWAY 563, AND 1.0 M (3.3 FT) NORTHWEST OF A FIBERGLASS WITNESS POST. THE 1283-METER POINT IS A SMALL 6 CM (2.5 IN) BLANK BRASS DISK STAMPED "1283" SET IN THE TOP OF A 25 CM (10 IN) DIAMETER CONCRETE POST RECESSED 2.5 CM (1 IN) BELOW THE SURFACE OF THE GROUND. IT IS 21.1 M (69.2 FT) WEST-SOUTHWEST OF WOODEN UTILITY POLE NO. E4, 20.5 M (67.3 FT) NORTH-NORTHEAST OF WOODEN UTILITY POLE NO. E6EA, 11.2 M (36.7 FT) SOUTHEAST OF THE CENTERLINE OF STATE HIGHWAY 563, AND 6.7 M (22.0 FT) NORTH-NORTHEAST OF THE NORTHERN END OF TWO SMALL METAL DRAINAGE PIPES. USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY. THIS SITE DOES NOT MEET CURRENT NGS SITE SPECIFICATIONS. SAFETY PRECAUTIONS ARE RECOMMENDED DUE TO HEAVY HIGHWAY TRAFFIC. THIS CALIBRATION BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION (PENDOT) AND REMEASURED WITH ASSISTANCE FROM THE PENNSYLVANIA SOCIETY OF LAND SURVEYORS. FOR MORE INFORMATION PLEASE CONTACT MR. DONALD KAMP, J.G. PARK ASSOCIATES INC., P.O. BOX 518, WASHINGTON CROSSING, PA 18977. TELEPHONE (215) 493-5546. OR CONTACT MR. EMERSON BORMAN, PENDOT, PHOTOGRAMMETRY AND SURVEYS, BUILDING 28, HARRISBURG INTERNATIONAL AIRPORT, MIDDLETOWN, PA 17057. TELEPHONE (717) 783-1518. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N400783 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: OGLE PENNSYLVANIA ROCKVILLE MD 20852 PROJECT ACCESSION NUMBER: G16309 SOMERSET COUNTY NEAREST TOWN: OGLETOWN LIST OF ADJUSTED DISTANCES (JULY 29, 1987) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 753.987 150 755.354 150.0029 150.0091 0.2 0 753.987 430 756.348 430.0133 430.0198 0.8 0 753.987 1060 761.353 1060.0184 1060.0440 1.1 150 755.354 430 756.348 280.0104 280.0121 0.8 150 755.354 1060 761.353 910.0155 910.0353 1.1 430 756.348 1060 761.353 630.0051 630.0250 0.7 DESCRIPTION OF OGLE BASE LINE YEAR MEASURED: 1987 CHIEF OF PARTY: MTL THE BASE LINE IS LOCATED 4.8 KM (3.0 MI) NORTHWEST OF OGLETOWN, 24.5 KM (15.3 MI) SOUTHEAST OF JOHNSTOWN, 14.2 KM (8.9 MI) SOUTHEAST OF THE JUNCTION OF STATE ROUTES 219 AND 56, AND ALONG THE NORTH SIDE OF STATE ROUTE 56. TO REACH THE BASE LINE FROM THE JUNCTION OF STATE ROUTES 219 AND 56, GO SOUTHEAST ON STATE ROUTE 56 FOR 6.4 KM (4.0 MI) TO THE INTERSECTION OF STATE ROUTE 160, CONTINUE STRAIGHT ON STATE ROUTE 56 FOR 7.8 KM (4.9 MI) TO THE 0 METER POINT ON THE LEFT. THE BASE LINE IS A NORTHWEST-SOUTHEAST LINE WITH THE 0 METER POINT AT THE NORTHWEST END. THE CBL CONSISTS OF THE 0, 150, 430, 1060 METER POINTS. ALL THE POINTS ARE SET ON A LINE RUNNING PARALLEL TO STATE ROUTE 56. THE 0 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "OGLE 1987", SET IN THE TOP OF A 50 CM (20.0 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 2.0 METERS (6.6 FT) EAST OF A ORANGE NGS WITNESS POST, 10.7 METERS (35.1 FT) NORTH OF THE CENTERLINE OF STATE ROUTE 56, AND 160.7 METERS (527.2 FT) WEST OF A GRAVEL ACCESS ROAD. THE 150 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "OGLE 150", SET IN THE TOP OF A 55 CM (21.7 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 2.2 METERS (7.2 FT) SOUTH OF A ORANGE NGS WITNESS POST. 10.7 METERS (35.1 FT) NORTH OF THE CENTERLINE OF STATE ROUTE 56, AND 10.5 METERS (34.4 FT) WEST OF A GRAVEL ACCESS ROAD. THE 430 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "OGLE 430", SET IN THE TOP OF A 55 CM (21.7 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 2.2 METERS (7.2 FT) SOUTH OF AN ORANGE NGS WITNESS POST, AND 10.5 METERS (7.2 FT) NORTH OF THE CENTERLINE OF STATE ROUTE 56. THE 1060 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "OGLE 1060", SET IN THE TOP OF A 55 CM (21.7 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 2.2 METERS (7.2 FT) SOUTH OF AN ORANGE NGS WITNESS POST, 6.5 METERS (21.3 FT) EAST OF THE SOUTHWEST CORNER OF A SIGN STATING "BABCOCK RANGER STATION, GALLITZIN STATE FOREST", AND 8.4 METERS (27.6 FT) NORTH OF THE CENTERLINE OF STATE ROUTE 56. USER NOTES: THIS BASE LINE IS LOCATED NEXT TO A HEAVY TRAFFIC HIGHWAY AND SAFTY PRECAUTIONS SHOULD BE TAKEN. ALSO, MICROWAVE INSTRUMENTS MAY BE AFFECTED BY A LOW VOLTAGE POWER LINE RUNNING PARALLEL AND ABOVE THE BASE LINE. THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH PENNSYLVANIA D.O.T. FOR FURTHER INFORMATION, CONTACT MR. GARY W. WALLACE, P.L.S., 1732 LYTER DRIVE, JOHNSTOWN, PA., 15905, TELEPHONE (814) 255-5821. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N400782 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: SPROUL PENNSYLVANIA ROCKVILLE MD 20852 - OCTOBER 29, 1986 PROJECT ACCESSION NUMBER: G16309 BLAIR COUNTY LIST OF ADJUSTED DISTANCES (JANUARY 29,1980) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 361.05 150 356.21 149.9159 149.9940 0.3 0 361.05 800 354.41 797.9146 797.9422 0.5 0 361.05 1400 353.35 1395.4781 1395.4993 0.6 150 356.21 800 354.41 647.9985 648.0010 0.4 150 356.21 1400 353.35 1245.5617 1245.5650 0.5 800 354.41 1400 353.35 597.5632 597.5642 0.4 DESCRIPTION OF SPROUL BASE LINE YEAR MEASURED: 1979 CHIEF OF PARTY: CWW THE BASE LINE IS LOCATED BETWEEN THE VILLAGE OF SPROUL AND THE VILLAGE OF CLAYSBURG, ALONG THE EASTERN EDGE OF UNITED STATES HIGHWAY 220 AND BETWEEN THE STRAIGHT LINE DIAGRAM STATIONS 0/80+09 AND 1/27+00. TO REACH THE BASE LINE FROM THE JUNCTION OF REED STREET AND UNITED STATES HIGHWAY 220 IN THE VILLAGE OF SPROUL, GO NORTH ON HIGHWAY 220 FOR 0.25 MILE TO THE 0 METER POINT ON THE RIGHT. THE 0 METER POINT IS 22 FEET SOUTHEAST OF THE CENTER LINE OF HIGHWAY 220, 12.8 FEET SOUTH OF A STEEL GUARD POST, 9 FEET NORTH OF THE STRAIGHT LINE DIAGRAM STATION 0/80 AND 2 FEET WEST OF A PENNSYLVANIA DEPARTMENT OF HIGHWAYS WITNESS POST. ALL OF THE MARKS ARE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION SURVEY CONTROL MARK DISKS SET IN THE TOP OF 8 INCH SQUARE CONCRETE MONUMENTS THAT ARE FLUSH WITH THE GROUND. THE MARKS ARE NOT STAMPED. THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT ON THE SOUTH END. IT IS MADE UP OF THE 0, 150, 800, AND 1400 METER POINTS. THE FROM AND TO STATION NAMES (THE METER POINT DESIGNATIONS) WERE PREASSIGNED AND DO NOT AGREE WITH THE MEASURED DISTANCES. ALL OF THE MARKS HAVE PENNSYLVANIA DEPARTMENT OF HIGHWAYS WITNESS POSTS AND ARE SET ON A LINE THAT RUNS PARALLEL TO THE EAST EDGE OF HIGHWAY 220. THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE PENNSYLVANIA DEPARTMENT OF TRANSPORTATION. FOR FURTHER INFORMATION CONTACT MR. DONALD E. WILBUR, PENNSYLVANIA DEPARTMENT OF TRANSPORTATION, PHOTOGRAMMETRY AND SURVEYS, BUILDING 28, HARRISBURG INTERNATIONAL AIRPORT, MIDDLETOWN, PENNSYLVANIA 17057. TELEPHONE 717-787-1601. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N360794 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: TITUSVILLE PENNSYLVANIA ROCKVILLE MD 20852 PROJECT ACCESSION NUMBER: G16309 CRAWFORD COUNTY NEAREST TOWN: TITUSVILLE LIST OF ADJUSTED DISTANCES (JULY 29, 1987) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 100.000 150 98.092 150.0043 150.0164 0.1 0 100.000 430 93.580 430.0097 430.0576 0.4 0 100.000 1500 79.794 1503.0004 1503.1362 0.6 150 98.092 430 93.580 280.0054 280.0417 0.4 150 98.092 1500 79.794 1352.9961 1353.1199 0.6 430 93.580 1500 79.794 1072.9907 1073.0792 0.4 DESCRIPTION OF TITUSVILLE BASE LINE YEAR MEASURED: 1987 CHIEF OF PARTY: MTL THE BASE LINE IS LOCATED 5.4 KM (3.4 MI) WEST-SOUTHWEST OF TITUSVILLE, 5.1 KM (3.2 MI) WEST-SOUTHWEST OF THE JUNCTION OF STATE ROUTES 8 AND 27, AND ALONG THE WEST EDGE AND PARALLEL TO THE TITUSVILLE MUNICIPAL AIRPORT RUNWAY. TO REACH THE BASE LINE FROM THE JUNCTION OF STATE ROUTES 8 AND 27, GO 5.1 KM (3.2 MI) ON STATE ROUTE 27 TO A PAVED SIDE ROAD LEFT AND THE TITUSVILLE MUNICIPAL AIRPORT SIGN. TURN LEFT AND GO SOUTH FOR 0.6 KM (0.4 MI) ON THE PAVED ROAD TO A BEND RIGHT. FOLLOW THE BEND RIGHT AND GO WEST FOR 0.16 KM (0.1 MI) TO A "Y". FOLLOW THE "Y" RIGHT T0 A "T" AND GO WEST-SOUTHWEST FOR 0.16 KM (0.1 MI) TO THE AIRPORT RUNWAY ENTRANCE. TURN RIGHT ONTO THE RUNWAY AND GO NORTH FOR 0.4 KM (0.25 MI) TO THE NORTH END AND THE 0 POINT ON THE LEFT. THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT AT THE NORTH END. THE CBL CONSISTS OF THE 0, 150, 430, AND THE 1500 METER POINTS. ALL POINTS ARE SET ON A LINE RUNNING PARALLEL AND WEST OF THE RUNWAY EDGE. THE 0 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "DRAKE 0", SET IN THE TOP OF A 45 CM (17.7 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 1.4 METERS (4.6 FT) WEST OF A WITNESS POST, AND 22.2 METERS (72.8 FT) WEST OF THE WEST EDGE OF THE RUNWAY. THE 150 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "DRAKE 150", SET IN THE TOP OF A 45 CM (17.7 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 1.4 METER (4.6 FT) WEST OF A WITNESS POST, 22.0 METERS (72.2 FT) WEST OF THE WEST EDGE OF THE RUNWAY. THE 430 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "DRAKE 430", SET IN THE TOP OF A 45 CM (17.7 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND, 1.4 METERS (4.6 FT) WEST OF A WITNESS POST, 22.0 METERS (72.2 FT) WEST OF THE WEST EDGE OF THE RUNWAY. THE 1500 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "DRAKE 1500", SET IN THE TOP OF A 45 CM (17.7 IN) CONCRETE POST FLUSH WITH THE GROUND, 1.4 METERS (4.6 FT) WEST OF A WITNESS POST, AND 22.2 METERS (72.8 FT) WEST OF THE SOUTHWEST CORNER OF THE SOUTH END OF THE RUNWAY. USER NOTES: TITUSVILLE MUNICIPAL AIRPORT CITY MANAGER SHOULD BE NOTIFIED PRIOR TO USE OF THIS BASE LINE (814) 827-9651. ALSO, CAUTION SHOULD BE TAKEN WHEN DRIVING ON OR NEAR RUNWAY. THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH PENNSYLVANIA D.O.T. AND THE PENNSYLVANIA SOCIETY OF LAND SURVEYORS-NORTHWEST CHAPTER. FOR MORE INFORMATION, PLEASE CONTACT MR. DALE HAWLEY, ALLEGHENY NATIONAL FOREST, 222 LIBERTY STREET, WARREN, PENNSYLVANIA, TELEPHONE: (814) 723-5150. 1US DEPARTMENT OF COMMERCE - NOAA CALIBRATION BASE LINE DATA QUAD: N400752 NOS - NATIONAL GEODETIC SURVEY BASE LINE DESIGNATION: WARMINSTER CBL PENNSYLVANIA ROCKVILLE MD 20852 - SEPTEMBER 21, 1993 PROJECT ACCESSION NUMBER: 16309 BUCKS COUNTY NEAREST TOWN: WARMINSTER LIST OF ADJUSTED DISTANCES (SEPTEMBER 20, 1993) ADJ. DIST.(M) ADJ. DIST.(M) STD. FROM STATION ELEV.(M) TO STATION ELEV.(M) HORIZONTAL MARK - MARK ERROR(MM) 0 M 1993 111.000 150 M 1993 110.214 150.0033 150.0054 0.1 0 M 1993 111.000 430 M 1993 110.491 429.9986 429.9989 0.1 0 M 1993 111.000 1400 M 1993 114.200 1399.9899 1399.9935 0.2 150 M 1993 110.214 430 M 1993 110.491 279.9953 279.9954 0.1 150 M 1993 110.214 1400 M 1993 114.200 1249.9864 1249.9928 0.1 430 M 1993 110.491 1400 M 1993 114.200 969.9911 969.9982 0.1 DESCRIPTION OF WARMINSTER BASE LINE YEAR MEASURED: 1993 CHIEF OF PARTY: KM A TAPE CALIBRATION MONUMENT IS SET 100 FEET FROM THE 0-METER POINT. THE REDUCED MARK-TO-MARK DISTANCE IS 100.00 FEET. THE BASE LINE IS LOCATED ABOUT 20.9 KM (13.0 MI) NORTH OF PHILADELPHIA, 4.4 KM (2.7 MI) WEST-SOUTHWEST OF RICHBORO, AND 3.6 KM (2.2 MI) EAST-SOUTHEAST OF WARMINSTER AT THE WARMINSTER NAVAL AIR WARFARE CENTER. THE BASE LINE RUNS ALONG AND IS APPROXIMATELY PARALLEL WITH THE SOUTHERN EDGE OF RUNWAY (9-27). ** NOTE ** MR. GEORGE REIFF, 1007 EDGE HILL ROAD, ABINGTON, PA 19001, MUST BE NOTIFIED PRIOR TO WORK ON THE BASE LINE AND CAN PROVIDE SECURITY--SITE ACCESS INFORMATION. TELEPHONE (215) 887-2165. THE BASE LINE IS AN EAST-WEST LINE WITH THE 0-METER POINT ON THE WEST END. IT CONSISTS OF THE 0, 150, 430, AND 1400 METER POINTS WITH A 100-FOOT TAPE CALIBRATION STATION LOCATED OFF LINE AND SOUTHEAST OF THE 0-METER POINT. TO REACH THE 0-METER POINT FROM THE JUNCTION OF STATE HIGHWAY 263 (YORK ROAD) AND STATE HIGHWAY 132 (STREET ROAD), LOCATED IN WARMINSTER, GO SOUTHEASTERLY ON STATE HIGHWAY 132 FOR 1.85 KM (1.15 MI) TO THE INTERSECTION OF STATE HIGHWAY 332 (JACKSONVILLE ROAD). TURN LEFT AND GO NORTHEAST ON STATE HIGHWAY 332 FOR 0.35 KM (0.22 MI) TO ENTRANCE GATE NO. 30 ON THE RIGHT. TURN RIGHT AND PASS THROUGH THE ENTRANCE GATE, THEN TURN HARD RIGHT AND GO SOUTHWEST ON THE ACCESS ROAD CURVING TO SOUTHEAST THEN NORTHEAST FOR 0.6 KM (0.4 MI) TO THE INTERSECTION OF AN ABANDONED TAXIWAY. TURN RIGHT AND GO SOUTHEAST ON THE TAXIWAY FOR 0.3 KM (0.2 MI) TO THE SOUTHEAST CORNER OF AN ABANDONED RUNWAY AND A PAVED ACCESS ROAD. GO EAST CURVING TO NORTHEAST ON THE ACCESS ROAD FOR 0.85 KM (0.53 MI) TO A CONCRETE BLOCK BUILDING WHERE THE ACCESS ROAD TURNS NINETY-DEGREES TO THE RIGHT. TURN RIGHT AND GO EAST ON THE ACCESS ROAD, PASSING THE SOUTH SIDE OF THE CONCRETE BLOCK BUILDING, THEN BEAR LEFT AND GO NORTHEASTERLY FOR 0.3 KM (0.2 MI) TO THE INTERSECTION OF A DIM TRACK ROAD ON THE LEFT JUST AFTER THE END OF AN ABANDONED RUNWAY. TURN LEFT AND GO NORTHWEST CROSS-COUNTRY FOR 0.09 KM (0.05 MI) TO THE 0-METER POINT. THE 0-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "0 M 1993" SET IN THE TOP OF A 25 CM (10 IN) DIAMETER CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 88.3 M (289.7 FT) WEST-NORTHWEST OF A CHAIN LINK FENCE CORNER, 68.8 M (225.7 FT) SOUTH OF THE SOUTHERN EDGE OF RUNWAY (9-27), 65.2 M (213.9 FT) SOUTHWEST OF RUNWAY SIGN NO. "4/4", AND 6.9 M (22.6 FT) NORTHEAST OF THE NORTHEAST EDGE OF AN ABANDONED RUNWAY ON LINE. THE 150-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "150 M 1993" SET IN THE TOP OF A 25 CM (10 IN) DIAMETER CONCRETE POST RECESSED 2.5 CM (1 IN) BELOW THE SURFACE OF THE GROUND. IT IS 68.7 M (225.4 FT) SOUTH OF THE SOUTHERN EDGE OF RUNWAY (9-27), 38.8 M (127.3 FT) NORTH OF THE CENTERLINE OF A PAVED TRACK ROAD, AND 15.4 M (50.5 FT) EAST OF THE EXTENDED CENTERLINE OF NEWTOWN ROAD. THE 430-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "430 M 1993" SET IN THE TOP OF A 25 CM (10 IN) DIAMETER CONCRETE POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 111.5 M (365.8 FT) SOUTHEAST OF RUNWAY SIGN NO. "5/3", 103.6 M (339.9 FT) NORTH-NORTHEAST OF THE NORTH CORNER OF A LARGE WOODEN BARN, AND 68.5 M (224.7 FT) SOUTH OF THE SOUTHERN EDGE OF RUNWAY (9-27). THE 1400-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "1400 M 1993" SET IN THE TOP OF A 25 CM (10 IN) DIAMETER CONCRETE POST RECESSED 2.5 CM (1 IN) BELOW THE SURFACE OF THE GROUND. IT IS 164.6 M (540.0 FT) SOUTHEAST OF THE SOUTHEASTERN CORNER OF RUNWAY (9-27), 149.9 M (491.8 FT) EAST OF THE EXTENDED EASTERN END OF RUNWAY (9-27), 107.9 M (354.0 FT) WEST-SOUTHWEST OF A CHAIN LINK FENCE, AND 14.2 M (46.6 FT) SOUTH-SOUTHWEST OF THE CENTERLINE OF A GRAVEL TRACK ROAD. THE 100-F00T TAPE CALIBRATION STATION IS A STANDARD NGS CALIBRATION BASE LINE TAPING DISK STAMPED "100 FT 1993" SET IN THE TOP OF A 25 CM (10 IN) DIAMETER CONCRETE POST RECESSED 2.5 CM (1 IN) BELOW THE SURFACE OF THE GROUND. IT IS 73.9 M (242.5 FT) SOUTH OF RUNWAY SIGN NO. "4/4", 57.8 M (189.6 FT) WEST-NORTHWEST OF A CHAIN LINK FENCE CORNER, 17.8 M (58.4 FT) NORTHWEST OF THE CENTERLINE OF A GRAVEL TRACK ROAD, AND 15.6 M (51.2 FT) NORTH OF THE NORTHEAST CORNER OF AN ABANDONED RUNWAY. USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY. DRIVING ON THE RUNWAYS IS STRICTLY PROHIBITED AND ALL AIRCRAFT HAVE THE RIGHT-OF-WAY. BECAUSE OF SOFT SOIL CONDITIONS OR WET WEATHER, CAUTION SHOULD BE USED WHEN DRIVING TO THE STATIONS OFF THE ACCESS ROAD. THIS CALIBRATION BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE DELAWARE VALLEY CHAPTER OF THE PENNSYLVANIA SOCIETY OF LAND SURVEYORS. FOR MORE INFORMATION PLEASE CONTACT MR. GEORGE REIFF, CHARLES E. SHOEMAKER, INC., ENGINEERS AND SURVEYORS, 1007 EDGE HILL ROAD, ABINGTON, PA 19001. TELEPHONE (215) 887-2165.