1924. Geological Survey (U.S.). Relief shown by contours and spot heights.; Index map on each sheet. each sheet 54 x 69 centimeters or smaller Scale 1:31,680 General Map Collection. The Survey (Washington, D.C).
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1925. Geological Survey (U.S.). Relief shown by contours and spot heights ; contour interval on land 20 ft. ; contour interval on river surface 5 ft.; Survey dates: 1924.; Topogra... The Survey (Washington).
4183. Plan and profile of Colorado River from Black Canyon, Arizona-Nevada to Arizona-Sonora boundary
1927. Geological Survey (U.S.). Relief shown by contours and spot heights.; Each sheet includes "Key map of plan sheets."; "Printed in 1927."; "19 plans, 1 profile sheet." on shee... U.S. Geological Survey (Washington).
1926. Geological Survey (U.S.). Relief shown by contours and spot heights ; contour interval on land 25 ft. contour interval on river surface 5 ft.; Survey dates between 1913 and ... The Survey (Washington).
1927. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Surveyed in 1926."; Index map on each sheet. 46 x 63 centimeters + Scale 1:31,680 General Map Collection. The Survey.
1926. Geological Survey (U.S.). Relief shown by contours and spot heights ; contour interval on land 20 ft. ; contour interval on river surface 5 ft.; "Surveyed in 1925."; Vertica... The Survey (Washington).
1926. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Surveyed in 1924-5."; Vertical scale of profiles 1 in. = 40 ft.; Includes "Key map of plan sheets" on ... The Survey (Washington).
1927. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Surveyed in 1924."; "Topography by R.W. Burchard."; "Datum is mean sea level."; Sheets include townshi... Dept. of the Interior, U.S. Geological Survey (Washington, D.C).
1925. Geological Survey (U.S.). Relief shown by contours and spot heights ; contour interval on land 20 ft. ; contour interval on river surface 5 ft.; Survey dates: 1921 and 1923.... The Survey (Washington).
4190. Plan and profile of Umpqua River above Scottsburg, Oregon : North Umpqua River and tributaries
1926. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Surveyed in 1914 and 1924."; Topography also done by R.B. Kilgore.; Vertical scale of profiles 1 in. =... The Survey (Washington).