01N 12W - Survey Map of Otsego Township, Allegan County

A survey map of the islands in the portion of the Kalamazoo River that runs through Otsego Township in Allegan County, Michigan. The survey was completed in 1850.

A survey map of Otsego Township in Allegan County, Michigan. The eastern boundary was measured in 1826, the southern boundary in 1827, and the northern and western divisions and all subdivisions in 1831.

The back of a map of Otsego Township in Allegan County, Michigan, listing extra meanders measurements.