USGS Geophysical ( GP Series ) Investigation Maps:

GP 0077 / TOTAL INTENSITY AEROMAGNETIC MAP, BERRYMAN QUADRANGLE, MISSOURI, $ 10

GP 0116 / AEROMAGNETIC SURVEY AND GEOLOGIC RECONNAISSANCE OF PART OF PISCATAQUIS COUNTY, MAINE, $ 10

GP 0119 / AIRBORNE RADIOACTIVITY SURVEY OF THE FOLKSTON AREA, FLORIDA, $ 10

GP 0122 / AIRBORNE RADIOACTIVITY SURVEY OF THE GARDNER AREA, FLORIDA, $ 10

GP 0123 / AIRBORNE RADIOACTIVE SURVEY, EDISTO ISLAND AREA, SOUTH CAROLINA, $ 10

GP 0125 / AIRBORNE RADIOACTIVITY SURVEY OF PART OF MOFFAT COUNTY, NORTH OF 40^o45', COLORADO, $ 10

GP 0126 / AIRBORNE RADIOACTIVITY SURVEY OF PART OF MOFFAT COUNTY, SOUTH OF 40^o45', COLORADO, $ 10

GP 0156 / RECONNAISSANCE TOTAL INTENSITY AEROMAGNETIC MAP, SOUTHERN PART, PRINCE OF WALES ISLAND, ALASKA, $ 10

GP 0136 / AEROMAGNETIC MAP OF THE ALTON QUADRANGLE, NEW HAMPSHIRE $ 10

GP 0137 / AEROMAGNETIC MAP OF THE BERWICK QUADRANGLE, MAINE AND NEW HAMPSHIRE, $ 10

GP 0138 / AEROMAGNETIC MAP OF UMBAGOG LAKE AND VICINITY, NEW HAMPSHIRE, $ 10

GP 0139 / AEROMAGNETIC MAP OF BERLIN AND VICINITY, NEW HAMPSHIRE, $ 10

GP 0149 / BOUGUER GRAVITY, NORTHWESTERN PART OF THE LOS ANGELES BASIN, $ 10

GP 0150 / AEROMAGNETIC MAP OF THE LAREDO QUAD., BEARPAW MNTS., MONTANA, $ 10

GP 0152 / AEROMAGNETIC MAP OF PART OF THE CENTENNIAL MOUNTAIN QUADRANGLE, BEARPAW MOUNTAINS, MONTANA, $ 10

GP 0154 / AEROMAGNETIC MAP OF THE JO-MARY MOUNTAIN AREA, PISCATIQUIS AND PENOBSCOT COUNTIES, MAINE, $ 10

GP 0155 / AEROMAGNETIC MAP OF THE HARRINGTON LAKE QUADRANGLE, PISCATAQUIS COUNTY, MAINE, $ 10

GP 0156 / AEROMAGNETIC MAP, COPPER RIVER BASIN, ALASKA, $ 10

GP 0182 / AEROMAGNETIC MAP, PART OF THE YELM QUADRANGLE, WASHINGTON, $ 10

GP 0183 / AEROMAGNETIC MAP, CAPE SHOALWATER QUADRANGLE, WASHINGTON, $ 10

GP 0184 / AEROMAGNETIC MAP OF THE SOUTH BEND QUADRANGLE, WASHINGTON, $ 10

GP 0185 / AEROMAGNETIC MAP OF THE WILLAPA QUADRANGLE, WASHINGTON, $ 10

GP 0186 / AEROMAGNETIC MAP OF THE PE ELL QUADRANGLE, WASHINGTON, $ 10

GP 0187 / AEROMAGNETIC MAP OF THE ADNA QUADRANGLE, WASHINGTON, $ 10

GP 0188 / AEROMAGNETIC MAP OF THE CENTRALIA QUADRANGLE, WASHINGTON, $ 10

GP 0189 / AEROMAGNETIC MAP OF THE ONALASKA QUADRANGLE, WASHINGTON, $ 10

GP 0195 / AEROMAGNETIC MAP OF WOODSVILLE AND VICINITY, NEW HAMPSHIRE AND VERMONT, $ 10

GP 0198 / AIRBORNE RADIOACTIVITY AND GEOLOGIC MAP OF THE COASTAL PLAIN AREA, SOUTHEAST TEXAS, $ 10

GP 0199 / RADIOACTIVITY AND GEOLOGIC MAP OF THE TORDILLA HILL-DEWEESVILLE AREA, KARNES COUNTY, TEXAS, $ 10

GP 0200 / AEROMAGNETIC MAP OF THE VALLEY FORGE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0201 / AEROMAGNETIC MAP OF THE NORRISTOWN QUADRANGLE, PENNSYLVANIA, $ 10

GP 0203 / AEROMAGNETIC MAP OF THE WEST CHESTER QUADRANGLE, PENNSYLVANIA, $ 10

GP 0204 / AEROMAGNETIC MAP OF PART OF THE MEDIAL QUADRANGLE, PENNSYLVANIA, $ 10

GP 0205 / AEROMAGNETIC MAP OF THE EAST GREENVILLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0206 / AEROMAGNETIC MAP OF THE MILFORD SQUARE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0207 / AEROMAGNETIC MAP OF THE SASSAMANSVILLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0208 / AEROMAGNETIC MAP OF THE PERKIOMENVILLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0209 / AEROMAGNETIC MAP OF THE PHOENIXVILLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0210 / AEROMAGNETIC MAP OF THE COLLEGEVILLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0211 / RECON. AIRBORNE MAGNETOMETER SURVEY OFF SOUTHERN CALIFORNIA, $ 10

GP 0213 / AEROMAGNETIC MAP OF THE ALLENTOWN QUADRANGLE, PENNSYLVANIA, $ 10

GP 0214 / AEROMAGNETIC MAP OF THE QUAKERTOWN QUADRANGLE, PENNSYLVANIA, $ 10

GP 0215 / AEROMAGNETIC MAP OF THE BUCKINGHAM QUADRANGLE, PENNSYLVANIA, $ 10

GP 0216 / AEROMAGNETIC MAP OF PARTS OF THE LAMBERTVILLE AND STOCKTON QUADS, PENNSYLVANIA, $ 10

GP 0217 / AEROMAGNETIC MAP OF THE SAFE HARBOR QUADRANGLE, PENNSYLVANIA, $ 10

GP 0218 / AEROMAGNETIC MAP OF THE CONESTOGA QUADRANGLE, PENNSYLVANIA, $ 10

GP 0219 / AEROMAGNETIC MAP OF THE QUARRYVILLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0221 / AEROMAGNETIC MAP OF THE ELVERSON QUADRANGLE, PENNSYLVANIA, $ 10

GP 0222 / AEROMAGNETIC MAP OF THE POTTSTOWN QUADRANGLE, PENNSYLVANIA, $ 10

GP 0223 / AEROMAGNETIC MAP OF THE WAGONTOWN QUADRANGLE, PENNSYLVANIA, $ 10

GP 0224 / AEROMAGNETIC MAP OF THE DOWNINGTON QUADRANGLE, PENNSYLVANIA, $ 10

GP 0225 / AEROMAGNETIC MAP OF PART OF THE COATSVILLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0226 / AEROMAGNETIC MAP OF PART OF THE UNIONVILLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0227 / AEROMAGNETIC MAP OF THE TEMPLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0228 / AEROMAGNETIC MAP OF THE FLEETWOOD QUADRANGLE, PENNSYLVANIA, $ 10

GP 0229 / AEROMAGNETIC MAP OF THE MANATAWNY QUADRANGLE, PENNSYLVANIA, $ 10

GP 0230 / AEROMAGNETIC MAP OF THE READING QUADRANGLE, PENNSYLVANIA, $ 10

GP 0231 / AEROMAGNETIC MAP OF THE BIRDSBORO QUADRANGLE, PENNSYLVANIA, $ 10

GP 0232 / AEROMAGNETIC MAP OF THE BOYERTOWN QUADRANGLE, PENNSYLVANIA, $ 10

GP 0233 / AEROMAGNETIC MAP OF THE HONEY BROOK QUADRANGLE, PENNSYLVANIA, $ 10

GP 0234 / AEROMAGNETIC MAP OF THE PARKESBURG QUADRANGLE, PENNSYLVANIA, $ 10

GP 0235 / AEROMAGNETIC MAP OF PART OF THE EASTON QUADRANGLE, PENNSYLVANIA, $ 10

GP 0236 / AEROMAGNETIC MAP OF PART OF THE RIEGELSVILLE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0237 / AEROMAGNETIC MAP OF PART OF THE HARBORO QUADRANGLE, PENNSYLVANIA, $ 10

GP 0238 / AEROMAGNETIC MAP OF THE LANGHORNE QUADRANGLE, PENNSYLVANIA, $ 10

GP 0239 / AEROMAGNETIC MAP OF THE WOMELSDORF QUADRANGLE, PENNSYLVANIA, $ 10

GP 0240 / AEROMAGNETIC MAP OF THE SINKING SPRING QUADRANGLE, PENNSYLVANIA, $ 10

GP 0241 / AEROMAGNETIC MAP OF THE EPHRATA QUADRANGLE, PENNSYLVANIA, $ 10

GP 0242 / AEROMAGNETIC MAP OF THE TERRE HILL QUADRANGLE, PENNSYLVANIA, $ 10

GP 0243 / AEROMAGNETIC MAP OF THE LEOLA QUADRANGLE, PENNSYLVANIA, $ 10

GP 0244 / AEROMAGNETIC MAP OF THE NEW HOLLAND QUADRANGLE, PENNSYLVANIA, $ 10

GP 0245 / AEROMAGNETIC MAP OF THE GAP QUADRANGLE, PENNSYLVANIA, $ 10

GP 0246 / PRELIMINARY AEROMAGNETIC ACTIVITY AND GEOLOGIC MAP OF THE FLORESVILLE SE QUADRANGLE, KARNES AND WILSON COUNTIES, TEXAS, $ 10

GP 0247 / PRELIMINARY AERORADIOACTIVITY AND GEOLOGIC MAP OF THE STOCKDALE SW QUADRANGLE, KARNES AND WILSON COUNTIES, TEXAS, $ 10

GP 0248 / PRELIMINARY AERORADIOACTIVITY AND GEOLOGIC MAP OF THE STOCKDALE SE QUADRANGLE, KARNES AND DE WITT, AND WILSON CO., TEXAS, $ 10

GP 0249 / PRELIMINARY AERORADIOACTIVITY AND GEOLOGIC MAP OF THE FALLS CITY NW QUADRANGLE, ATASCOSA, KARNES, AND WILSON CO., TEXAS, $ 10

GP 0250 / PRELIMINARY AERORADIOACTIVITY AND GEOLOGIC MAP OF THE FALLS CITY NE QUADRANGLE, KARNES AND WILSON COUNTIES, TEXAS, $ 10

GP 0251 / PRELIMINARY AERORADIOACTIVITY AND GEOLOGIC MAP OF THE KARNES CITY NW QUADRANGLE, KARNES COUNTY, TEXAS, $ 10

GP 0304 / AEROMAGNETIC MAP OF THE DEADWOOD AREA, SOUTH DAKOTA, $ 10

GP 0310 / AEROMAGNETIC MAP OF THE SKINNER AND PART OF THE ATTEAN AND SANDY BAY QUADRANGLES, MAINE, $ 10

GP 0312 / GEOLOGIC AND AEROMAGNETIC MAP OF NORTHERN MAINE, $ 10

GP 0330 / AEROMAGNETIC MAP OF THE CHAIN LAKE QUADRANGLE, MAINE, $ 10

GP 0331 / AEROMAGNETIC MAP OF THE SPENCER LAKE QUADRANGLE, MAINE, $ 10

GP 0332 / AEROMAGNETIC MAP OF THE KENNEBAGO LAKE QUADRANGLE, MAINE, $ 10

GP 0333 / AEROMAGNETIC MAP OF THE STRATTON QUADRANGLE, MAINE, $ 10

GP 0334 / AEROMAGENTIC MAP OF THE MOOSEHEAD LAKE QUADRANGLE, MAINE, $ 10

GP 0335 / AEROMAGNETIC MAP OF THE GREENVILLE QUADRANGLE AND PART OF THE SEBEC LAKE QUADRANGLE, MAINE, $ 10

GP 0354 / AEROMAGNETIC MAP, UGASHIK AND KARLUK QUADRANGLES, ALASKA, $ 10

GP 0362 / AEROMAGNETIC MAP OF THE SOUTHWESTERN PART OF CUSTER COUNTY, SOUTH DAKOTA, $ 10

GP 0364 / AEROMAGNETIC MAP OF THE BREWSTER QUADRANGLE, FAIRFIELD COUNTY, CONNECTICUT AND PUTNAM COUNTY, NEW YORK, $ 10

GP 0365 / AEROMAGNETIC MAP OF THE DANBURY QUADRANGLE, FAIRFIELD AND LITCHFIELD COUNTIES, CONNECTICUT, $ 10

GP 0366 / AEROMAGNETIC MAP OF THE NEWTON QUADRANGLE, FAIRFIELD, LITCHFIELD, AND NEW HAVEN COUNTIES, CONNECTICUT, $ 10

GP 0367 / AEROMAGNETIC MAP OF THE PEACH LAKE QUADRANGLE, FAIRFIELD COUNTY, CONNECTICUT AND PUTNAM AND WESTCHESTER COUNTIES, NEW YORK, $ 10

GP 0370 / AEROMAGNETIC PROSPECTING FOR BAUXITE DEPOSITS IN THE MISSISSIPPI EMBAYMENT, ARKANSAS AND MISSOURI, $ 10

GP 0376 / AEROMAGNETIC MAP OF THE SPIDER LAKE QUADRANGLE AND PART OF THE MUSQUACOOK LAKES QUADRANGLE, PISCATAQUIS AND AROOSTOOK COUNTY, MAINE, $ 10

GP 0379 / AEROMAGNETIC MAP OF THE CHESUNCOOK QUADRANGLE, MAINE, $ 10

GP 0380 / AEROMAGNETIC MAP OF THE TELOS LAKE QUADRANGLE, MAINE, $ 10

GP 0381 / AEROMAGNETIC MAP OF PART OF THE TRAVELER MOUNTAIN QUADRANGLE, MAINE, $ 10

GP 0392 / GRAVITY AND AEROMAGNETIC MAPS OF THE ELY AREA, NEVADA, $ 10

GP 0402 / AEROMAGNETIC MAP OF CENTRAL YAVAPAI COUNTY, ARIZONA, $ 10

GP 0403 / AEROMAGNETIC MAP OF PART OF TOH-ATIN MESA QUADRANGLE, ARIZONA, $ 10

GP 0404 / AEROMAGNETIC MAP OF LOS GIGANTES BUTTES QUADRANGLE, ARIZONA, $ 10

GP 0405 / AEROMAGNETIC MAP OF YELLOWSTONE CANYON QUADRANGLE, ARIZONA, $ 10

GP 0406 / AEROMAGNETIC MAP OF CANYON DEL MUERTO QUADRANGLE, ARIZONA, $ 10

GP 0407 / AEROMAGNETIC MAP OF NAZLINI QUADRANGLE, ARIZONA, $ 10

GP 0411 / AEROMAGNETIC MAP OF BAGDAD QUADRANGLE, ARIZONA, $ 10

GP 0412 / AEROMAGNETIC MAP OF DRAGOON QUADRANGLE, ARIZONA, $ 10

GP 0413 / AEROMAGNETIC MAP OF COCHISE QUADRANGLE, ARIZONA, $ 10

GP 0415 / GRAVITY MAP OF EUREKA COUNTY AND ADJOINING AREAS, NEVADA, $ 10

GP 0418 / AEROMAGNETIC MAP OF PARTS OF WILLCOX & LUZERNE QUADRANGLES, ARIZONA, $ 10

GP 0419 / AEROMAGNETIC MAP OF MAMMOTH QUADRANGLE, ARIZONA, $ 10

GP 0420 / AEROMAGNETIC MAP OF PHOENIX, MESA, CAMELBACK, NEW RIVER SE QUADRANGLES, ARIZONA, $ 10

GP 0421 / SIMPLE BOUGUER GRAVITY OF KENTUCKY, $ 10

GP 0423 / AEROMAGNETIC INTERPRETATION AND PRELIMINARY GEOLOGY OF THE DANFORTH AREA, MAINE, $ 10

GP 0424 / AEROMAGNETIC & GEOLOGIC MAP, SILVER CITY MINING REGION, NEW MEXICO, $ 10

GP 0426 / AEROMAGNETIC MAP OF TWIN BUTTES AREA, ARIZONA, $ 10

GP 0438 / AEROMAGNETIC MAP OF THE SHELBURNE FALLS QUADRANGLE, FRANKLIN COUNTY, MASSACHUSETTS, $ 10

GP 0440 / AEROMAGNETIC MAP OF THE TONOPAH SPRING QUADRANGLE AND PART OF THE BARE MOUNTAIN QUADRANGLE, NEVADA, $ 10

GP 0441 / AEROMAGNETIC MAP OF THE TIPPIPAH SPRING QUADRANGLE AND PARTS OF THE PAPOOSE LAKE AND WHEELBARROW PEAK QUAD., NEVADA, $ 10

GP 0442 / AEROMAGNETIC MAP OF THE CANE SPRING QUADRANGLE AND PARTS OF THE FRENCHMAN LAKE, SPECTER RANGE, AND MERCURY QUADRANGLE, NEVADA, $ 10

GP 0443 / AEROMAGNETIC MAP OF THE TIMBER MOUNTAIN QUADRANGLE AND PART OF THE SILENT CANYON QUADRANGLE, NEVADA, $ 10

GP 0477 / AEROMAGNETIC MAP OF THE CUPSUPTIC QUADRANGLE, MAINE, $ 10

GP 0478 / AEROMAGNETIC MAP OF THE OQUOSSOC QUADRANGLE, MAINE, $ 10

GP 0479 / AEROMAGNETIC MAP OF THE PHILLIPS QUADRANGLE, MAINE, $ 10

GP 0480 / AEROMAGNETIC MAP OF THE RANGELEY QUADRANGLE AND PART OF THE KENNEBAGO LAKE QUADRANGLE, MAINE, $ 10

GP 0486 / AEROMAGNETIC MAP OF THE OLD SPECK MOUNTAIN QUADRANGLE, MAINE, $ 10

GP 0490 / AEROMAGNETIC MAP OF PART OF THE LANES CREEK QUADRANGLE, IDAHO, $ 10

GP 0499 / AEROMAGNETIC AND GENERALIZED GEOLOGIC MAP OF THE BINGHAM QUADRANGLE, $

GP 0505 / NATURAL GAMMA AREOMAGNETIC MAP OF THE DENVER AREA, $ 10

GP 0511 / AEROMAGNETIC MAP OF THE CACTUS SPRING QUADRANGLE AND PART OF THE GOLDFIELD QUADRANGLE, NEVADA, $ 10

GP 0512 / AEROMAGNETIC MAP OF THE SARCOBATUS FLAT AREA, NEVADA, $ 10

GP 0513 / AEROMAGNETIC MAP OF THE WHEELBARROW PEAK QUADRANGLE AND PART OF THE GROOM MINE QUADRANGLE, NEVADA, $ 10

GP 0514 / AEROMAGNETIC MAP OF THE BELTED PEAK QUADRANGLE AND PART OF THE WHITE BLOTCH SPRINGS QUADRANGLE, NEVADA, $ 10

GP 0515 / AEROMAGNETIC MAP FO THE QUARTZITE MOUNTAIN QUADRANGLE, NEVADA, $ 10

GP 0516 / AEROMAGNETIC MAP OF PART OF KAWICH PEAK AND REVEILLE PEAK QUADRANGLES, NEVADA, $ 10

GP 0517 / AEROMAGNETIC MAP OF THE CACTUS PEAK AND STINKING SPRING QUADRANGLE, NEVADA, $ 10

GP 0518 / AEROMAGNETIC MAP OF THE MELLAN QUADRANGLE, NEVADA, $ 10

GP 0519 / AEROMAGNETIC MAP OF THE BLACK MOUNTAIN QUADRANGLE, NEVADA, $ 10

GP 0520 / AEROMAGNETIC MAP OF THE SILENT CANYON QUADRANGLE, NEVADA, $ 10

GP 0521 / AEROMAGNETIC MAP OF THE POCATELLO-SODA SPRING AREA, IDAHO, $ 10

GP 0536 / AEROMAGNETIC MAP OF PART OF THE WEST GRANVILLE QUADRANGLE, HAMPDEN COUNTY, MASSACHUSETTS, AND HARTFORD COUNTY, CONNECTICUT, $ 10

GP 0548 / AEROMAGNETIC MAP OF THE CASA GRANDE AREA, ARIZONA, $ 10

GP 0556 / REGIONAL AEROMAGNETIC MAP OF WESTERN LAKE SUPERIOR & ADJACENT, $ 10

GP 0557 / AEROMAGNETIC MAP OF THE DENVER AREA, COLORADO, $ 10

GP 0580 / SIMPLE BOUGUER GRAVITY MAP OF MAINE, $ 10

GP 0597 / AEROMAGNETIC & GRAVITY PROFILES OF THE U.S. ALONG THE 37th PARALLEL, $ 10

GP 0598 / AEROMAGNETIC MAP OF THE SAN FRANCISCO MOUNTAINS AND VICINITY, SOUTHWESTERN UTAH, $ 10

GP 0615 / BOUGUER GRAVITY MAP OF PARTS OF MARICOPA, PIMA, PINAL, AND YUMA COUNTIES, ARIZONA, $ 10

GP 0637 / AEROMAGNETIC MAP OF THE HOT CREEK RANGE REGION, $ 10

GP 0638 / GRAVITY OF THE TRINIDAD QUADRANGLE, COLORADO, $ 10

GP 0653 / AEROMAGNETIC MAP OF THE THOMPSON QUADRANGLE AND PART OF THE EAST KILLINGLY QUADRANGLE, CONNECTICUT AND RHODE ISLAND, $ 10

GP 0654 / AEROMAGNETIC MAP OF THE FIRST CONNECTICUT LAKE AND VICINITY, NEW HAMPSHIRE, $ 10

GP 0657 / AEROMAGNETIC STRIP MAP, THE CENTRAL SIERRA NEVADA, CALIFORNIA, $ 10

GP 0670 / AEROMAGNETIC MAP OF THE CUSTER-RAPID CITY AREA, SOUTH DAKOTA, $ 10

GP 0682 / AEROMAGNETIC MAP OF THE LIBBY AND MT. PEND OREILLE QUADRANGLES, IDAHO, $ 10

GP 0683 / AEROMAGNETIC MAP, THOMPSON LAKES QUADRANGLE, LINCOLN, LANDERS, AND FLATHEAD COUNTIES, MT, $ 10

GP 0684 / AEROMAGNETIC MAP, McGREGOR LAKE - TALLEY LAKE AREA, FLATHEAD & LINCOLN CO., MT, $ 10

GP 0685 / AEROMAGNETIC MAP OF THE TROUT CREEK QUADRANGLE, IDAHO, $ 10

GP 0686 / AEROMAGNETIC MAP OF THE THOMPSON FALLS QUADRANGLE; LINCOLN & SANDERS COUNTY, MT, $ 10

GP 0687 / AEROMAGNETIC MAP OF THE HUBBART RESERVOIR - HOT SPRINGS AREA; SANDERS, FLATHEAD, AND LAKE CO., MT, $ 10

GP 0688 / AEROMAGNETIC MAP OF THE KINGSTON, KELLOGG, AND PART OF THE FERNWOOD QUADRANGLES, IDAHO, $ 10

GP 0689 / AEROMAGNETIC MAP OF THE AVERY QUADRANGLE, IDAHO, $ 10

GP 0690 / AEROMAGNETIC MAP OF THE HAUGAN AND ST. REGIS QUADRANGLES AND PARTS OF THE SIMMONS PEAK & ILLINOIS PEAK QUADRANGLES, SHOSHONE CO., IDAHO, AND SANDERS CO., MONTANA, $ 10

GP 0691 / AEROMAGNETIC MAP OF THE PLAINS, PERMA, SUPERIOR, AND TARKIO QUADRANGLES; SANDERS, MINERAL, AND MISSOULA COUNTIES, MT, $ 10

GP 0694 / AEROMAGNETIC / GEOLOGIC MAP, AUSTIN AREA, $ 10

GP 0695 / AEROMAGNETIC MAP, ANTELOPE VALLEY & PART OF THE GARLOCK FAULT ZONE, SOUTH-CENTRAL CALIFORNIA, $ 10

GP 0744 / AEROMAGNETIC / GEOLOGIC MAP, SAN ANTONIO MOUNTAINS, $ 10

GP 0750 / AEROMAGNETIC MAP OF THE WESTERN PART OF THE NORTHERN PENINSULA, MICHIGAN AND PART OF NORTHERN WISCONSIN, $ 10

GP 0751 / AEROMAGNETIC MAP OF PARTS OF THE WALKER LAKE, RENO, CHICO, AND SACRAMENTO 1 X 2 QUADRANGLES, $ 10

GP 0752 / AEROMAGNETIC MAP OF PARTS OF THE TONOPAH AND MILLET 1 X 2 QUADRANGLES, NEVADA, $ 10

GP 0753 / AEROMAGNETIC MAP OF PARTS OF THE GOLDFIELD, MARIPOSA, AND DEATH VALLEY 1 X 2 QUADRANGLES, NEVADA, $ 10

GP 0754 / AEROMAGNETIC MAP, THE SALTON SEA GEOTHERMAL AREA, CALIFORNIA, $ 10

GP 0757 / AEROMAGNETIC MAP OF THE GOLD BUTTE-CHLORIDE AREA, ARIZONA, $ 10

GP 0758 / AEROMAGNETIC MAP OF THE BRADSHAW MOUNTAINS AND VICINITY, ARIZONA, $ 10

GP 0815 / AEROMAGNETIC RECONNAISSANCE, SAN ANDREAS FAULT, SAN FRANCISCO TO SAN BERNARDINO, CALIFORNIA, $ 10

GP 0830 / AEROMAGNETIC AND GEOLOGIC MAP OF PART OF NORTHWEST MONTANA AND NORTHERN IDAHO, $ 10

GP 0832 / AEROMAGNETIC MAP OF PARTS OF THE HAMILTON AND ELK CITY 1 X 2 QUADRANGLES, IDAHO, $ 10

GP 0835 / AEROMAGNETIC MAP OF PART OF THE CHALLIS 1 X 2, IDAHO, $ 10

GP 0836 / AEROMAGNETIC MAP OF COLORADO, $ 10

GP 0837 / AEROMAGNETIC, BOUGUER GRAVITY, AND GENERALIZED GEOLOGIC MAP, CENTRAL LITTLE BELT MNTS., $ 10

GP 0838 / AEROMAGNETIC MAP OF MORENCI-MONTICELLO AREA, ARIZONA, $ 10

GP 0840 / AEROMAGNETIC MAP OF THE RIDGWAY - PAGOSA SPRINGS AREA, SOUTHWESTERN COLORADO, $ 10

GP 0841 / AEROMAGNETIC MAP OF PART OF THE ELK CITY 1 X 2 QUADRANGLE, IDAHO, $ 10

GP 0867 / AEROMAGNETIC MAP OF THE HADDAM QUADRANGLE, MIDDLESEX AND NEW HAVEN COUNTIES, CONNECTICUT, $ 10

GP 0880 / AEROMAGNETIC MAP OF COLORADO, $ 10

GP 0881 / AEROMAGNETIC AND GEOLOGIC MAP, WEST-CENTRAL PART OR SEWARD PENINSULA, ALASKA, $ 10

GP 0894 / AEROMAGNETIC MAP OF MICHIGAN AND THE ADJACENT GREAT LAKES, $ 10

GP 0905 / COMPLETE BOUGUER GRAVITY MAP OF SP MOUNTAIN QUADRANGLE, ARIZONA, $ 10

GP 0911 / AEROMAGNETIC MAP OF IOWA: COLOR CODED INTENSITIES, $ 10

GP 0895 / BOUGUER GRAVITY MAP OF COLORADO, $ 10

GP 0896 / BOUGUER GRAVITY AND GENERALIZED ELEVATION MAPS OF COLORADO, $ 10

GP 0897 / AEROMAGNETIC MAP OF CONNECTICUT, $ 10

GP 0903 / BOUGUER GRAVITY, AEROMAGNETIC, AND GENERALIZED GEOLOGIC MAPS OF PART OF THE BLACK HILLS OF SOUTH DAKOTA AND WYOMING, $ 10

GP 0904 / SIMPLE BOUGUER GRAVITY MAP OF PART OF THE CAROLINA SLATE BELT INCLUDING THE HAILE AND BREWER MINE AREAS, $ 10

GP 0908 / COMPLETE BOUGUER & FREE-AIR GRAVITY ANOMALY MAPS OF THE DELAROF ISLANDS AND TANAGA ISLAND, ALASKA, $ 10

GP 0912 / SIMPLE BOUGER ANOMALY MAP OF THE GULF OF MEXICO AND ADJACENT, $ 10

GP 0913 / BOUGUER GRAVITY MAP OF ALASKA, $ 10

GP 0914 / BOUGUER GRAVITY MAP OF THE OKANOGAN, SANDPOINT, RITZVILLE, AND SPOKANE 1 X 2 QUADRANGLES, IDAHO, $ 10

GP 0917 / AEROMAGNETIC MAP AND GEOLOGIC INTERPRETATION OF THE WEST-CENTRAL COLUMBIA PLATEAU, WASHINGTON, $ 10

GP 0918 / AEROMAGNETIC & GEOLOGIC MAP OF PARTS OF CENTRAL CALIFORNIA, $ 10

GP 0920 / AEROMAGNETIC MAP OF IDAHO: COLOR CODED INTENSITIES, IDAHO, $ 10

GP 0922 / AEROMAGNETIC MAP OF NEVADA: COLOR CODED INTENSITIES, $ 10

GP 0926 / AEROMAGNETIC / GEOLOGIC MAP, PARADISE RANGE, $ 10

GP 0930 / BOUGUER GRAVITY ANOMALY MAP OF THE NORTHERN MICHIGAN - LAKE SUPERIOR REGION, $ 10

GP 0932 / AEROMAGNETIC ANOMALIES, FAULTS, EARTHQUAKE EPICENTERS, AND IGNEOUS ROCKS IN THE SO. SAN FRANCISCO BAY REGION, CA, $ 15

GP 0936 / AEROMAGNETIC MAP OF THE PART OF THE SOUTHEASTERN UNITED STATES IN COLOR, $ 10

GP 0937 / AEROMAGNETIC MAP OF PART OF THE SOUTHEASTERN UNITED STATES, $ 10

GP 0942 / AEROMAGNETIC MAP OF NORTHEASTERN UNITED STATES IN COLOR, $ 10

GP 0948 / AEROMAGNETIC MAP OF EAST-CENTRAL UNITED STATES, $ 10

GP 0952 / BOUGUER GRAVITY MAP OF THE WESTERN ARM OF THE BLACK ROCK DESERT, NEVADA, $ 10

GP 0953 A / DIGITAL COLORED RESIDUAL AND REGIONAL BOUGUER GRAVITY MAPS OF THE CONTERMINOUS U.S. WITH CUT-OFF WAVELENTHS OF 250 KM AND 100 KM, $ 10

GP 0954 A / COMPOSITE MAGNETIC ANOMALY MAP OF THE UNITED STATES, PART A, 1:2 500 000, in two sections, $ 20

GP 0955 / DIGITAL MAGNETIC-ANOMALY MAP OF CENTRAL U.S.: DESCRIPTION OF MAJOR FEATURES, $ 10

GP 0975 / ISOSTATIC RESIDUAL GRAVITY, TOPOGRAPHIC, AND FIRST-VERTICAL-DERIVATIVE GRAVITY MAPS OF THE CONTERMINOUS U.S., $ 10

GP 0976 / BOUGUER AND ISOSTATIC GRAVITY MAPS OF THE WINNEMUCCA 1 X 2 QUADRANGLE, NEVADA, $ 10

GP 0978 / BOUGUER GRAVITY ANOMALY MAP AND FOUR DERIVATIVE MAPS OF IDAHO, $ 10

GP 0984 / SEISMICITY MAP OF THE CONTERMINOUS UNITED STATES AND ADJACENT AREAS, 1975-1984, $ 10

GP 0985 / BOUGUER GRAVITY ANOMALY MAPS OF PARADISE, STAGECOACH, DIXIE, FAIRVIEW, AND STINGAREE VALLEYS, NORTHWESTERN NEVADA, $ 10

GP 0993 / BOUGUER GRAVITY ANOMALY MAP OF SOUTHWESTERN WYOMING, NORTHEASTERN UTAH, AND NORTHWESTERN COLORADO, $ 10

GP 0994 / AEROMAGNETIC MAPS AND TERRACE-MAGNETIZATION MAP CENTERED ON THE IDAHO BATHOLITH AND CHALLIS VOLCANIC FIELD, $10

GP 0995 / COMPLETE BOUGUER GRAVITY, ISOSTATIC RESIDUAL GRAVITY AND RELATED GEOPHYSICAL MAPS CENTERED ON THE IDAHO BATHOLITH AND CHALLIS VOLCANIC FIELD, $10

GP 0996 / DIGITAL TOPOGRAPHY MAP CENTRERED ON THE IDAHO BATHOLITH AND CHALLIS VOLCANIC FIELD, NORTHWESTERN U.S., $ 10

GP 1003 A / ELECTROMAGNETIC SURVEY MAPS SHOWING RESISTIVITY OF THE GETCHELL GOLD TREND, OSGOOD MOUNTAINS, NEVADA, $10

GP 1003 B / AEROMAGNETIC AND RELATED MAPS OF THE GETCHELL GOLD TREND, OSGOOD MOUNTAINS, NEVADA, $ 10

GP 1011 / WORLD MAP OF VOLCANOES AND PRINCIPLE AERONAUTICAL FEATURES, $ 10