Topographic sheets. Maryland, Gunpowder sheet, lat. 39° 15′-39° 30′, long. 76° 15′-76° 30′. Scale 1:62,500, contour interval 20 ft.
Publication Title:
Maryland, Gunpowder sheet, lat. 39° 15′-39° 30′, long. 76° 15′-76° 30′. Scale 1:62,500, contour interval 20 ft.
Display Title:
Topographic sheets. Maryland, Gunpowder sheet, lat. 39° 15′-39° 30′, long. 76° 15′-76° 30′. Scale 1:62,500, contour interval 20 ft.
Corporate Agency Authors:
Geological Survey and Interior Department
Sort Author:
Geological Survey
Date:
Edition of July 1893, reprinted Oct. 1898
Publish Date ISO Format:
1898-10-01T00:00:00Z
Publication Start:
18981001
Publication End:
18981031
Corporate/Agency Author:
Geological Survey
Publication month:
3
Publication year:
1898
Notes:
NOTE.—The Geological Survey is making a topographic map of the United States. The sheets of which it is composed are projected without reference to political divisions, and are designated by some prominent feature found on them. Three scales are used, 1:62,500, 1:125,000, and 1:250,000. These correspond, approximately, to 1 mile, 2 miles, and 4 miles to 1 linear inch on the map. The size, unless otherwise 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, unless otherwise specified. About one-fifth of the area of the country 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 different sheets the price is 2c each.
Notes:
NOTE.—The Geological Survey is making a topographic map of the United States. The sheets of which it is composed are projected without reference to political divisions, and are designated by some prominent feature found on them. Three scales are used, 1:62,500, 1:125,000, and 1:250,000. These correspond, approximately, to 1 mile, 2 miles, and 4 miles to 1 linear inch on the map. The size, unless otherwise 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, unless otherwise specified. About one-fifth of the area of the country 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 different sheets the price is 2c each.