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Geological Survey (U.S.)

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Map showing condition and progress of astronomic location, primary triangulation, primary traverse and precise leveling, for the fiscal year 1896-7.
Map showing condition and progress of astronomic location, primary triangulation, primary traverse and precise leveling, for the fiscal year 1896-7.

Map showing condition and progress of topographic surveys and location of gaging stations for the fiscal year 1896-7.
Map showing condition and progress of topographic surveys and location of gaging stations for the fiscal year 1896-7.

Hypsography of a part of the Ridged-Drift Area in North-Eastern Iowa
Hypsography of a part of the Ridged-Drift Area in North-Eastern Iowa

Preliminary Geologic Map of Maine
Preliminary Geologic Map of Maine

Salt Lake City and vicinity, Utah
Salt Lake City and vicinity, Utah

Boston Harbor, Massachusetts: Survey of the Coast of the United States
Boston Harbor, Massachusetts: Survey of the Coast of the United States

Map of Maine
Map of Maine

Motorists Guide Rocky Mountain National Park
Motorists Guide Rocky Mountain National Park

Map of Yosemite Valley, Yosemite National Park, California, Mariposa County
Map of Yosemite Valley, Yosemite National Park, California, Mariposa County

Seattle and vicinity, Washington
Seattle and vicinity, Washington