recent buzz... Added aerial photo coverage for all of Somerset County, Pennsylvania, from 1958! See a...
Topographic Map Index
USGS 1:62500-SCALE QUADRANGLE FOR PLAYAS, NM 1919
USGS US TOPO 7.5-MINUTE MAP FOR BEVERLY, WA 2014
USGS 1:24000-SCALE QUADRANGLE FOR TRAFALGAR, IN 1965
USGS 1:24000-SCALE QUADRANGLE FOR SPRINGFIELD, SD 1978
USGS US TOPO 7.5-MINUTE MAP FOR REGAN, ND 2014
USGS US TOPO 7.5-MINUTE MAP FOR ROWAN, NC 2013
USGS 1:24000-SCALE QUADRANGLE FOR WAR EAGLE, AR 1957
USGS US TOPO 7.5-MINUTE MAP FOR HIGH PARK, CO 2019
USGS 1:24000-SCALE QUADRANGLE FOR HORNSBY, TN 1950
USGS US TOPO 7.5-MINUTE MAP FOR DENBY, SD 2017
USGS US TOPO 7.5-MINUTE MAP FOR KEWANEE, MO 2012
USGS US TOPO 7.5-MINUTE MAP FOR GIBBONSVILLE, ID-MT 2013
USGS US TOPO 7.5-MINUTE MAP FOR KARLSTAD, MN 2019
USGS 1:100000-SCALE QUADRANGLE FOR MEREDOSIA, IL 1990
USGS US TOPO 7.5-MINUTE MAP FOR PEACH ORCHARD, AR 2014
USGS US TOPO 7.5-MINUTE MAP FOR HARVARD, IL-WI 2012
USGS 1:125000-SCALE QUADRANGLE FOR BENTON, AR 1894
USGS US TOPO 7.5-MINUTE MAP FOR DES ARC NE, MO 2015
USGS 1:48000-SCALE QUADRANGLE FOR WINCHESTER, WI 1939
USGS 1:62500-SCALE QUADRANGLE FOR BROCKPORT, NY 1899
USGS 1:125000-SCALE QUADRANGLE FOR ASHLAND, KS 1896
USGS 1:24000-SCALE QUADRANGLE FOR CAMPAIGN, TN 1960
USGS 1:24000-SCALE QUADRANGLE FOR DARNELL BRANCH, TX 1964
USGS US TOPO 7.5-MINUTE MAP FOR TARPLEY PASS, TX 2019
USGS 1:24000-SCALE QUADRANGLE FOR FARSON, WY 1968
USGS US TOPO 7.5-MINUTE MAP FOR LA VALLE, WI 2013
USGS US TOPO 7.5-MINUTE MAP FOR ROSE CITY, MN 2013
USGS 1:24000-SCALE QUADRANGLE FOR METALLAK MTN, ME 1984
USGS 1:24000-SCALE QUADRANGLE FOR WINNIE NW, TX 1962
USGS US TOPO 7.5-MINUTE MAP FOR EMILY COULEE, MT 2017
USGS 1:24000-SCALE QUADRANGLE FOR OPHIR, CO 1955
US TOPO 7.5-MINUTE MAP FOR APISHAPA BRIDGE, CO
USGS US TOPO 7.5-MINUTE MAP FOR OYSTER BAYOU, TX 2013
USGS 1:24000-SCALE QUADRANGLE FOR HARRIMAN, TN 1968
USGS 1:24000-SCALE QUADRANGLE FOR SUMRALL, MS 1974
USGS 1:62500-SCALE QUADRANGLE FOR DALTON, GA 1919
USGS 1:100000-SCALE QUADRANGLE FOR SEAFORD, DE 1984
USGS 1:100000-SCALE QUADRANGLE FOR PRINCETON, IN 1986
USGS US TOPO 7.5-MINUTE MAP FOR BLACKBIRD CREEK, ID 2013
USGS 1:100000-SCALE QUADRANGLE FOR ANIMAS, NM 1983
USGS US TOPO 7.5-MINUTE MAP FOR BOSCOBEL, WI 2013
USGS US TOPO 7.5-MINUTE MAP FOR BLACK RIVER, MI 2014
USGS US TOPO 7.5-MINUTE MAP FOR SCOTTSBURG, IN 2019
USGS 1:24000-SCALE QUADRANGLE FOR TELL CITY, IN 1961
USGS 1:100000-SCALE QUADRANGLE FOR SAN SABA, TX 1985
USGS 1:24000-SCALE QUADRANGLE FOR BROCKPORT, NY 1971
USGS 1:250000-SCALE QUADRANGLE FOR EASTPORT, ME 1969
USGS US TOPO 7.5-MINUTE MAP FOR NEWBURG, ND 2020
USGS 1:125000-SCALE QUADRANGLE FOR JUNCTION CITY, KS 1894
USGS 1:24000-SCALE QUADRANGLE FOR CHIMINEAS RANCH, CA 1959
USGS 1:24000-SCALE QUADRANGLE FOR NORTH OF AGUA DULCE MOUNTAINS, AZ 1996
USGS US TOPO 7.5-MINUTE MAP FOR BIG STONE LAKE SW, SD 2021
USGS 1:24000-SCALE QUADRANGLE FOR MORRO BAY SOUTH, CA 1976
USGS 1:24000-SCALE QUADRANGLE FOR MARGARETTSVILLE, VA 1966
USGS US TOPO 7.5-MINUTE MAP FOR HUERFANO TRADING POST NW, NM 2017
USGS 1:250000-SCALE QUADRANGLE FOR SAN BERNARDINO, CA 1953
USGS US TOPO 7.5-MINUTE MAP FOR BUFFALO SPRINGS RANCH SE, CO 2016
USGS US TOPO 7.5-MINUTE MAP FOR NANTUCKET OE S, MA 2021
USGS 1:62500-SCALE QUADRANGLE FOR SHADOW MOUNTAINS, CA 1942
USGS 1:24000-SCALE QUADRANGLE FOR BEAVER CREEK RESERVOIR, CO 2001
USGS US TOPO 7.5-MINUTE MAP FOR SAN FRANCISCO NORTH, CA 2012
USGS US TOPO 7.5-MINUTE MAP FOR SAN FRANCISCO NORTH, CA 2015
USGS US TOPO 7.5-MINUTE MAP FOR FIFTEENMILE VALLEY, CA 2015
USGS 1:24000-SCALE QUADRANGLE FOR RAPPAHANNOCK ACADEMY, VA 1969
USGS 1:24000-SCALE QUADRANGLE FOR BRANCH MOUNTAIN, CA 1995
USGS 1:24000-SCALE QUADRANGLE FOR CALAVERAS RESERVOIR, CA 1961
USGS 1:62500-SCALE QUADRANGLE FOR OLD DAD MOUNTAIN, CA 1956
USGS 1:250000-SCALE QUADRANGLE FOR WHITE SULPHUR SPRINGS, MT 1958
USGS 1:62500-SCALE QUADRANGLE FOR SHADOW MOUNTAINS, CA 1937
USGS US TOPO 7.5-MINUTE MAP FOR IRON SHELL FLAT EAST, SD 2021
USGS 1:250000-SCALE QUADRANGLE FOR CHARLOTTESVILLE, VA 1949
USGS US TOPO 7.5-MINUTE MAP FOR FRENCH VILLAGE, MO 2021
USGS 1:62500-SCALE QUADRANGLE FOR SPRINGFIELD, LA 1963
USGS 1:24000-SCALE QUADRANGLE FOR SAN LUIS OBISPO, CA 1965
USGS US TOPO 7.5-MINUTE MAP FOR SCHUMACHER LAKE NE, SD-ND 2012
USGS US TOPO 7.5-MINUTE MAP FOR BIG EAU PLEINE RESERVOIR, WI 2018
USGS 1:62500-SCALE QUADRANGLE FOR TURTLE MOUNTAINS, CA 1954
USGS 1:62500-SCALE QUADRANGLE FOR SPRINGFIELD, LA 1963
USGS 1:62500-SCALE QUADRANGLE FOR SAN LUIS OBISPO, CA 1952
USGS 1:250000-SCALE QUADRANGLE FOR SAN LUIS OBISPO, CA 1956
USGS 1:24000-SCALE QUADRANGLE FOR STANDINGSTONE MTN, SC 1997
USGS US TOPO 7.5-MINUTE MAP FOR APPLE VALLEY SOUTH, CA 2015
USGS 1:24000-SCALE QUADRANGLE FOR HALLORAN SPRINGS, CA 1983
USGS US TOPO 7.5-MINUTE MAP FOR LONG LAKE NE, SD,ND 2021
USGS 1:24000-SCALE QUADRANGLE FOR TWENTYNINE PALMS, CA 1973
USGS 1:24000-SCALE QUADRANGLE FOR LEAD MOUNTAIN SW, CA 1955
USGS 1:24000-SCALE QUADRANGLE FOR LAKE WACCAMAW EAST, NC 1986
USGS US TOPO 7.5-MINUTE MAP FOR EL DORADO SPRINGS SOUTH, MO 2021
USGS 1:24000-SCALE QUADRANGLE FOR NORTHEAST LUMBERTON, NC 1986
USGS 1:24000-SCALE QUADRANGLE FOR SAN GORGONIO MOUNTAIN, CA 1996
USGS 1:100000-SCALE QUADRANGLE FOR ELIZABETH CITY, NC 1985
USGS US TOPO 7.5-MINUTE MAP FOR EASTERN ISLES DERNIERES, LA 2015
USGS 1:25000-SCALE QUADRANGLE FOR STEPHENTOWN CENTER, NY 1998
USGS US TOPO 7.5-MINUTE MAP FOR IN-KO-PAH GORGE OE S, CA-BCN 2015
USGS 1:24000-SCALE QUADRANGLE FOR MOUNTAIN ISLAND LAKE, NC 1997
US TOPO 7.5-MINUTE MAP FOR MOUNT MANCHESTER, CA,NV,AZ
USGS 1:24000-SCALE QUADRANGLE FOR MOUNTAIN ISLAND LAKE, NC 1969
USGS 1:24000-SCALE QUADRANGLE FOR PLAINVIEW COLONY SW, SD 1978
USGS 1:24000-SCALE QUADRANGLE FOR BEAVER CREEK RESERVOIR, CO 1967
USGS 1:24000-SCALE QUADRANGLE FOR STOTLERS CROSSROADS, WV 1958
USGS US TOPO 7.5-MINUTE MAP FOR LAKE ANDES NW, SD 2021
USGS US TOPO 7.5-MINUTE MAP FOR MCKITTRICK SUMMIT, CA 2012
USGS 1:62500-SCALE QUADRANGLE FOR RODMAN MOUNTAINS, CA 1955
USGS US TOPO 7.5-MINUTE MAP FOR CABIN CREEK NW, WY,MT 2021
USGS 1:24000-SCALE QUADRANGLE FOR EAST OF MILLIGAN, CA 1985
USGS 1:24000-SCALE QUADRANGLE FOR WEST FORK RIO BRAZOS, NM 1995
USGS 1:62500-SCALE QUADRANGLE FOR CAPE SAN MARTIN, CA 1921
USGS 1:250000-SCALE QUADRANGLE FOR SAN BERNARDINO, CA 1966
USGS US TOPO 7.5-MINUTE MAP FOR SAN RAFAEL MOUNTAIN, CA 2012
USGS 1:250000-SCALE QUADRANGLE FOR WHITE SULPHUR SPRINGS, MT 1958
USGS 1:24000-SCALE QUADRANGLE FOR CHIMINEAS RANCH, CA 1995
USGS US TOPO 7.5-MINUTE MAP FOR GIANT PINE CAMPGROUND, MN 2019
USGS 1:24000-SCALE QUADRANGLE FOR COLONIAL BEACH SOUTH, VA 1968
USGS 1:62500-SCALE QUADRANGLE FOR CAPE SAN MARTIN, CA 1921
USGS 1:24000-SCALE QUADRANGLE FOR MINNEHAHA SPRINGS, WV 1962
USGS 1:250000-SCALE QUADRANGLE FOR CHARLOTTESVILLE, VA 1949
USGS US TOPO 7.5-MINUTE MAP FOR DRY BULLION CREEK, ND 2014
USGS 1:62500-SCALE QUADRANGLE FOR HETCH HETCHY RESERVOIR, CA 1956
USGS 1:24000-SCALE QUADRANGLE FOR LAGUNA DEL PERRO SOUTH, NM 1978
USGS 1:24000-SCALE QUADRANGLE FOR DUNSMORE MOUNTAIN, NC 1967
USGS 1:24000-SCALE QUADRANGLE FOR SOURDOUGH SPRING, CA 1984

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SOURDOUGH SPRING
Imprint Year: 1985
Grid Size: 7.5 X 7.5 MINUTE
Scan Date: 11/02/2011
Center Longitude: -117.0625
Center Latitude: 35.8125
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Imprint Year: 1985
Grid Size: 7.5 X 7.5 MINUTE
Scan Date: 11/02/2011
Center Longitude: -117.0625
Center Latitude: 35.8125
Go to map in viewer