Geological Survey (U.S.). Alfred H. Brooks, Geologist in charge ; Surveyed in 1903, 1905, 1906, 1907, and 1908. Relief shown by contours, spot heights, and form lines for un... U.S. Geological Survey.
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Geological Survey (U.S.). Relief shown by contours and spot heights. U.S. Geological Survey.
Geological Survey (U.S.) and Douglas, Edward Morehouse, 1855-1932. Relief shown by contours and spot heights. "E.M. Douglas, Geographer in charge. Topography by Richard T. Evans. Triangulation by H.L. Baldwin, Jr. ... U.S. Geological Survey.
from Geological Survey atlas sheets; surveyed between 1893 and 1906; R.B.. Marshall, chief geographer. Relief shown by contours and spot heights. "... U.S. Geological Survey.
Geological Survey (U.S.). Alfred H. Brooks, geologist in charge of division ; topography by D.C. Witherspoon, R.H. Sargent, and J.W. Bagley. Relief shown by contours and spo... U.S. Geological Survey.
Geological Survey (U.S.), Douglas, Edward Morehouse, 1855-1932, and Evans, R. T. (Richard Tranter), b. 1881. U.S. Geological Survey ; E.M. Douglas, geographer in charge ; triangulation by T.M. Bannon ; topography by Richard T. Evans. "Surveyed in 1902." Re... U.S. Geological Survey.
Douglas, E. M. (Edward Morehouse), 1855-1932. Relief shown by contours and spot heights. "E.M. Douglas, Geographer in charge. Topography by R.H. Sargent. Triangulation by T.M. Bannon. Surveyed ... U.S. Geological Survey.
Geological Survey (U.S.). Relief shown by contours, hachures and spot heights. At top of sheet: Topography. 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.). Alfred H. Brooks, geologist in charge of division ; topography by D.C. Witherspoon. Surveyed in 1914-1916. Relief shown by contours and spot heights. U.S. Geological Survey.
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