View of parade grounds on Mackinac Island; cannon and two-story wooden-frame house in foreground. Printed on front: "70595, parade grounds, Mackinac Island, Mich." Printed on back: "Phostint card, made only by Detroit Publishing Co." Handwritten on back: "6/13/15. Having fine time so far, weather fine. John." Card is postmarked June 13, 1915.
