Relief shown by contours. Contour interval 5 feet. "R.B. Marshall, Chief Geographer, W.H. Herron, Geographer in charge; Topography by C.B. Childs ... [et al.]; Surveyed in 1918." "Surveyed in cooperation with the War Department." Text and ill. on verso. 1 map: col.; 66 x 56 cm This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.
Geological Survey (U.S.),Marshall, R. B. (Robert Bradford), 1867-1949.,United States. Army. Corps of Engineers.