1981. United States. Soil Conservation Service. Shows land use.; "December 1981."; Includes vicinity map. 103 x 123 centimeters. The Service (Morgantown, W. Va.?).
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42. Harper's Ferry
1862. Michler, N. (Nathaniel), 1827-1881. Scale [1:21,120]. 3 in. to 1 mile; 1 map: hand colored, mounted on cloth; 56 x 68 cm Harpers Ferry, Battle of, Harpers Ferry, W. Va., 1862--Maps.
1980. United States. Soil Conservation Service. Base source: USGS 1:100,000 county base dated 1979; interpretations derived from soil map constructed 1979.; "Projection and 10,000-metre grid tick... Dept. of Agriculture, Soil Conservation Service (Washington.).
2011. National Atlas of the United States. This polygon shapefile portrays the hazardous waste generated, shipped, and received by state and other areas within the United States, Puerto Rico... National Atlas of the United States.
1981. United States. Soil Conservation Service. Shows land use.; "July 1981."; Includes vicinity map. 93 x 112 centimeters. The Service (Morgantown, W. Va.?).
2010. National Geophysical Data Center. This map layer shows isogonic lines (lines of constant declination of the Earth's magnetic field), derived from the International Geomagnetic Refer... National Atlas of the United States.
2010. National Geophysical Data Center. This line shapefile shows lines of equal horizontal intensity of the Earth's magnetic field, derived from the International Geomagnetic Reference F... National Atlas of the United States.
2010. National Geophysical Data Center. This shapefile shows isoclinic lines (lines of constant inclination of the Earth's magnetic field), derived from the International Geomagnetic Refe... National Atlas of the United States.
2010. National Geophysical Data Center. This map layer shows isoporic lines (lines of equal annual change, or secular variation, in the declination of the Earth's magnetic field), derived... National Atlas of the United States.
2010. National Geophysical Data Center. This line shapefile shows lines of equal annual change (secular variation) in the horizontal component of the total field intensity of the Earth's ... National Atlas of the United States.