Whelpley, ThomasA survey map detailing islands in the portion of the Kalamazoo River that runs through Saugatuck Township in Allegan County, Michigan, measured in 1850.JPEG200048041699-61ca-4f62-ac22-b038fb484723MI-T003N-R016WengDepartment of Natural Resources8888-003Public03N 16W - Survey Map of Saugatuck Township, Allegan County, Page 2 [Michigan]MapsMichigan--AlleganT003N-R016W1850