Rainbow Cave
Munising, Michigan
in Michigan's Upper Peninsula
Those beautifully colored rock formations were formed by Glaciers which covered this area during the Ice-Age.
**Our vintage postcards may have wear, age, or production imperfections. We will mention any creasing, stains, fading, missing corners, and writing; the photos are also part of the description. You may contact us with any questions or concerns, or if you would like more photos. Thanks for shopping!
