Thoma, Joseph C.A survey map of Hemlock Island, located in the Section 7 portion of Pine Lake in Prairieville Township, Barry County, Michigan. This survey was completed in July 1927.JPEG2000764634e1-a6d5-4a81-9712-52261f684018MI-T001N-R010WengDepartment of Natural Resources8888-003Public01N 10W - Survey Map of Prairieville Township, Barry County, Page 7 [Michigan]MapsMichigan--BarryT001N-R010W1927