About the Maps

Several different maps and aerial images are used to show the dynamic interaction of geography, people, commerce, and industry over the past two centuries.  Several of the maps are Sanborn Fire Insurance Maps. Visit this page from the Keweenaw Time Traveler for more details about how to interpret Sanborn Fire Insurance Plans.

Historic Overlay Map Details (as of March 20, 2026)

Maps

• Sanborn Fire Insurance Map from Owosso, Shiawassee County, Michigan. Sanborn Map Company, Oct, 1884. Map. https://www.loc.gov/item/sanborn04142_001/.

• Sanborn Fire Insurance Map from Owosso, Shiawassee County, Michigan. Sanborn Map Company, Jul, 1890. Map. https://www.loc.gov/item/sanborn04142_002/.

• Sanborn Fire Insurance Map from Owosso, Shiawassee County, Michigan. Sanborn Map Company, Dec, 1894. Map. https://www.loc.gov/item/sanborn04142_003/.

• Sanborn Fire Insurance Map from Owosso, Shiawassee County, Michigan. Sanborn Map Company, Jan, 1900. Map. https://www.loc.gov/item/sanborn04142_004/. 

• Sanborn Fire Insurance Map from Owosso, Shiawassee County, Michigan. Sanborn Map Company, Aug, 1908. Map. https://www.loc.gov/item/sanborn04142_005/.

• Sanborn Fire Insurance Map from Owosso, Shiawassee County, Michigan. Sanborn Map Company, Dec, 1915. Map. https://www.loc.gov/item/sanborn04142_006/.

• 1951 Historical Downtown Map

• County atlas of Shiawassee Co. Michigan: from recent and actual surveys and records / under the superintendence of F.W. Beers, 1875. Atlas.

Aerial Imagery

• Abrams Aerial Survey Corp. Aerial Photograph of Owosso, Michigan. April 9, 1956. 1" = 100' scale, 16 × 28 in., black-and-white photo paper print. City of Owosso.

• Abrams Aerial Survey Corp. Aerial Photograph of Owosso, Michigan. January 26, 1973. 1" = 100' scale, 16 × 28 in., black-and-white photo paper print. City of Owosso.