This image shows a portion of the Lake Superior shoreline near the village of Grand Marais in the Upper Peninsula of Michigan.

E.C. Kropp Co., Milwaukee, Wis.
There is no description on this card. The legend on the front states:
GRAND MARAIS
BETWEEN EAGLE HARBOR AND COPPER HARBOR — 30
IN BEAUTIFUL KEWEENAW
–The village of Grand Marais is the location of a fresnel lens lighthouse and a rescue station for sailors and ships.
This image likely dates from the 1940s.