Brookfield, William (Surveyor)A survey map of Otisco Township in Ionia County, Michigan. The township lines and subdivision lines were drawn in 1837.JPEG2000c8d87c27-d90b-4843-8d23-dbdf96182bddMI-T008N-R008WengDepartment of Natural Resources8888-003Public08N 08W - Survey Map of Otisco Township, Ionia County [Michigan]MapsMichigan--IoniaT008N-R008W1837