RG 87-155 GLO Survey Maps, 1816-1860

A survey map of the Western central quarter of Oscoda Township in Iosco County, Michigan, measured between 1838 and 1927.

A collection of survey maps of Delta Township in Eaton County, Michigan. The first survey map in this collection details all of Delta Township and was drawn between February and March 1827. The second map details islands in the portion of the Grand River that runs through Delta Township; this survey was completed in 1855.

A survey map of the Westernmost quarter of Oscoda Township in Iosco County, Michigan, measured between 1837 and 1927.

Survey maps of Michigamme Township in Marquette County, Michigan, measured between 1846 and 1929.

Survey maps of the City of Detroit in Wayne County, Michigan, some measured in 1817, others undated.

A set of survey maps related to Wisner Township in Tuscola County, Michigan, measured between 1821 and

A collection of survey maps of Gunplain Township in Allegan County, Michigan. The first survey map in this collection details all of Gunplain Township and was drawn in December 1826. The second map in this collection details islands in the portion of the Kalamazoo River that runs through Gunplain Township. This survey was completed in 1850.

A survey map of part of Houghton Township and several surrounding islands in Isle Royale County, Michigan, measured between 1847 and 1934.

A survey map of Lake Township in Huron County, Michigan, measured in 1835.

A collection of survey maps of Cato Township in Montcalm County, Michigan. The first map is of the whole of Cato Township. The township lines were measured in 1837; the subdivision lines were measured in 1838. The second map details an island in a lake, located in Sections 9, 10, 15, and 16 of Cato Township. This survey was completed in September 1868.