29N 01W - Survey Map of Charlton Township, Otsego County: Michigan
A survey map of the bottom third of Charlton Township in Otsego County, Michigan. The meridian line, which served as the eastern township boundary, was measured in 1839 along with the other township boundaries. The southern township boundary and subdivision lines were re-measured in 1856.
Hodgson, John, Mellen, Harvey, Mullett, James H., and Sibley, Sylvester