You searched for: Subject Geological maps Remove constraint Subject: Geological maps Collection Michigan State University Map Library Remove constraint Collection: Michigan State University Map Library Time Period 1900-1949 Remove constraint Time Period: 1900-1949
1933. United States Bureau of Soils. Relief shown by contours and spot heights. "Contour interval 10 and 20 feet." "Mark Baldwin, Inspector, District 1. Soils surveyed by J.O. Veatch, ...