Fodor's Expert Review Medicine Wheel/Medicine Mountain National Historic Landmark

A ring of rocks 75 feet in diameter, this ancient site is the best preserved of nearly 150 Native American stone wheels found in Wyoming, South Dakota, Montana, Alberta, and Saskatchewan. Evidence such as the 28 spokes (one for each day of the lunar cycle) leading from the edge of the wheel to a central cairn has persuaded some that the wheel was an ancient spiritual observatory much like England's Stonehenge may have been. To protect the area, access to the wheel is restricted to foot travel; it's a 1½-mile hike on a well-maintained unpaved road to the site from the parking lot (people with disabilities may drive to the site). Up in the Big Horn Mountains, at an elevation of 9,642 feet, the site affords views of the entire Big Horn Basin. Dress warmly, as it's cool up here, even in summer.