Orange mount. Four people stand in front of Sugar Loaf Rock on Mackinac Island. Printed on front of stereocard: "P.B. Greene, photographer, 342 W. Adams St., Chicago." Handwritten on front: "Sugar Loaf rock, Mackinac Is." Printed on stereocard back: "Views of the national park Mackinac Island, 209. Sugarloaf rock, P.B. Greene, photographer, 342 West Adams St., Chicago." Left hand image is ripped in upper right corner.