Clason, LewisPattison, Thomas (Civil Engineer)A survey map of the Western half of Caledonia Township in Alcona County, Michigan, measured in 1840.JPEG200066bb0e35-4bfa-4118-9a9f-8ab89ac3ad3bMI-T028N-R006EengDepartment of Natural Resources8888-003Public28N 06E - Survey Map of Caledonia Township, Alcona County [Michigan]MapsMichigan--AlconaT028N-R006E1840