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 May 19, 2026)

Maps

Aerial Imagery

  • Abrams Aerial Survey Corp. Aerial Photograph of Owosso, Michigan. September 6, 1937. 1:20000 scale, black-and-white photo paper print. Michigan State University RS & GIS Aerial Imagery Archive.

  • USDA, Aerial Photograph of Owosso, Michigan. July 13, 1940. 1:20000 scale, black-and-white photo paper print. Michigan State University RS & GIS Aerial Imagery Archive.

  • USDA, Aerial Photograph of Owosso, Michigan. July 1, 1950. 1:20000 scale, black-and-white photo paper print. Michigan State University RS & GIS Aerial Imagery Archive.

  • USDA, Aerial Photograph of Owosso, Michigan. September 2, 1955. 1:20000 scale, black-and-white photo paper print. Michigan State University RS & GIS Aerial Imagery Archive.

  • 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.

  • USDA, Aerial Photograph of Owosso, Michigan. June 1, 1963. 1:20000 scale, black-and-white photo paper print. Michigan State University RS & GIS Aerial Imagery Archive.

  • 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.