1. Soil map, Minnesota, Crookston sheet Maps University Of Minnesota Public content 1906. United States. Bureau of Soils. Soils surveyed by A.W. Mangum and F.C. Schroeder 1906. 79 x 82 Centimeters Scale approximately 1:63,360 Minneapolis and St. Paul Maps and Atlases. A. Hoen (Baltimore [MD).