This image shows the rather rough road called Sand Dune Drive along the shore of Lake Superior on the Keweenaw Peninsula in the Upper Peninsula of Michigan.
There is no description on the back of this card. The caption on the bottom states:
Scenic view  Sand Dune Drive
Eagle Harbor Mich
–The sand beach in this area stretches for four miles from the unincorporated village of Eagle Harbor.
The auto shown indicates that the image likely dates from the 1940s.