1990. Condra, G. E. Conservation and Survey Division.
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1897. Geological Survey (U.S.). Shows buildings, roads and railroads.; Relief shown by contours and spot heights.; "Surveyed in 1895."; Includes legend. 43 x 62 centimeters Scale ... U.S. Geological Survey (Washington, D.C).
2010. This dataset displays the topographical elevation lines above sea level in Fauquier County, VA 2010. These lines are record in 5-foot intermediate ...
2002. This dataset displays the topographical elevation lines above sea level in Prince William County. Descriptions for type codes can be found in the P...
1875. Lehman, Ambrose E. (Ambrose Edwin), 1851-1917. Title from maps.; "Under the superintendence until 1877 of Dr. Persifor Frazer."; "J. P. Lesley, state geologist."; Assistant topographers: George ... Geological Survey of Pennsylvania (Harrisburg, Pa).
1904. Huebinger, M. (Melchior). Iowa Publishing Co.
1904. Huebinger, M. (Melchior). Iowa Publishing Co.
1904. Huebinger, M. (Melchior). Iowa Publishing Co.
1904. Huebinger, M. (Melchior). Iowa Publishing Co.
1904. Huebinger, M. (Melchior). Iowa Publishing Co.