Split view: the left half is a color photograph of the Mackinac Bridge spanning the blue waters of the Straits of Mackinac, with a freighter passing beneath and the green shoreline beyond. The right half is a printed road map titled "Circle Tours" showing the Great Lakes region with a red touring route through Michigan, Wisconsin, Ontario and neighboring states.
Chrome-era glossy color card; vertical crease near right edge; map half printed in flat colors with route numbers.
No postmark. Divided-back chrome-era panoramic card (Curt Teich Colorchrome), glossy, no white border. Pencil dealer marks '#59' and '1-' at lower right. No handwriting other than those marks.
Cite this card
Mackinac Bridge and Circle Tours map, Straits of Mackinac, Michigan, circa 1960, postcard, c. 1945. PostalPast Collection. https://postalpast.com/postcard/mackinac-bridge-and-circle-tours-map-straits-of-mackinac-mic. Accessed October 5, 2026.