Geological Survey (U.S.). Relief shown by contours, hachures and spot heights. At top of sheet: Topography. U.S. Geological Survey.
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geology by W. Lindgren. Relief indicated by contours and spot heights. Surveyed in 1892. U.S. Geological Survey.
geology by W. Lindgren. Relief indicated by contours and spot heights. Surveyed in 1892. U.S. Geological Survey.
Relief shown by contours and spot heights. Contour interval 5 feet. Text and ill. on verso. Surveyed in 1908-1909. R.B. Marshall, chief geographer,... U.S. Geological Survey.
Geological Survey (U.S.). Contour interval 20 feet. Surveyed in 1891. Shows mines and placer diggings. U.S. Geological Survey.
Geological Survey (U.S.) and Thompson, A. H. (Almon Harris), 1839-1906. Relief shown by contours. Contour interval 20 feet. "A.H. Thompson, Geographer ; E.M. Douglas, Topographer in charge ; Triangulation by E.M. Dougla... U.S. Geological Survey.
Henry Gannett, chief geographer . . .. Relief shown by contours and spot heights. Contour interval 100 feet. Surveyed in 1884. U.S. Geological Survey.
Geological Survey (U.S.) and Goode, Richard Urquhart, 1858-1903. Relief shown by contours and spot heights. "Advance sheet. Subject to correction." "R.U. Goode, geographer ; topography by L.W. Lawson ... [et al.]... U.S. Geological Survey.
Geological Survey (U.S.) and Goode, Richard Urquhart, 1858-1903. Relief shown by contours and spot heights. "Advance sheet. Subject to correction." "R.U. Goode, geographer ; topography by L.W. Lawson ... [et al.]... U.S. Geological Survey.
Geological Survey (U.S.) and Goode, Richard Urquhart, 1858-1903. Relief shown by contours and spot heights. "Advance sheet. Subject to correction." "R.U. Goode, geographer ; topography by L.W. Lawson ... [et al.]... U.S. Geological Survey.