1. Colton's Minnesota : Colton's Wisconsin Maps University Of Minnesota Public content 1867. G.W. & C.B. Colton & Co. Shows Minn. county boundaries as of 1871, railroads, cities and towns, and extent of surveyed townships with Public Land Survey coordinates.; At ba... Published by G.W. and C.B. Colton & Co (New York, N.Y), 1867.