Independence Rock Highway 220, 20 Miles Northeast Of Muddy Gap Casper, WY 82601 US Website Get Directions Details Wrapper Description Description Natural Landmark along Oregon Trail. Numerous travelers painted, carved or wrote their names in its surface over the years. Related Content 15 Incredible Moments in Goshen County, Wyoming Fall in Love with Cheyenne Trails for Every Trekker: 12 Wyoming Hiking Trails in & Near National Parks 3 Days in Wyoming: Getaways for Any Type of Traveler