Topographic sheets. West Virginia-Obio-Pennsvlvania, Wheeling quadrangle, lat.40°-40° 15′, long. 80° 30′-80° 45′. Scale 1: 62,500, contour interval 20 ft.
Publication Title:
West Virginia-Obio-Pennsvlvania, Wheeling quadrangle, lat.40°-40° 15′, long. 80° 30′-80° 45′. Scale 1: 62,500, contour interval 20 ft.
Display Title:
Topographic sheets. West Virginia-Obio-Pennsvlvania, Wheeling quadrangle, lat.40°-40° 15′, long. 80° 30′-80° 45′. Scale 1: 62,500, contour interval 20 ft.
Corporate Agency Authors:
Geological Survey and Interior Department
Sort Author:
Geological Survey
Date:
Edition of Oct. 1902
Publish Date ISO Format:
1902-10-01T00:00:00Z
Publication Start:
19021001
Publication End:
19021031
Corporate/Agency Author:
Geological Survey
Publication month:
3
Publication year:
1902
Notes:
NOTE.— The Geology Survey is making a topographic map of the United States. The sheets of which it is composed are project without reference to political divisions, and are designated by some prominent festure found on them. Three scales are used 1:62,500, 1:123,000 and 1:250,000. These correspond, aproximately, to 1 mile, 2 miles, and 4 miles to 1 linear inch on the map. The size, unlessotherwise given, is about 17.5 inches in height by 11.5 to 16 inches in width, exclusive of the margin, the width varying with the latitude. A description of the topographic map is printed on the reverse of each sheet catalogued below.
About three-tenths of the area of the country, excluding Alaska, has been mapped, nearly every State being represented. Massachusetts, Connecticut, Rhode Island, New Jersey, and the District of Columbia are completely mapped. Sheets of the regular size are sold by the Survey at 5c each: but in lot's of 100 or more copies, whether of the same sheet or of different sheets, the price is 2c each.