"Surveyed in 1911.", Includes "Index to shafts" listed alphabetically and by number on map., Map showing responsibility for topography in lower margin., and Relief shown by contours and spot heights.
Publisher:
The Survey,
Subject (Geographic):
Leadville (Colo.)--Maps
Subject (Name):
Davis, E. P., Marshall, R. B. (Robert Bradford), 1867-1949., Robertson, R. B., Semper, C. H., Tatum, Sledge., and Taylor, S. E.
Subject (Topic):
Mines and mineral resources--Colorado--Leadville--Maps.
In two sheets., Includes inset of The Hawaiian Islands., and Relief shown by contours and spot heights; contour interval 40 ft.
Publisher:
Dept. of the Interior, U.S. Geological Survey,
Subject (Geographic):
Hawaii--Oahu and Oahu (Hawaii)--Maps
Subject (Name):
Birdseye, C. H. (Claude Hale), 1878-1941, Davis, Geo. R. (George R.), Fowler, A. T, Hawaii. Territorial Survey., Marshall, R. B. (Robert Bradford), 1867-1949, and U.S. Coast and Geodetic Survey