In the memoir, Wild, Cheryl Strayed's life-changing journey along the Pacific Crest Trail was both treacherous, and breathtakingly beautiful. Learn unique facts about the terrain Cheryl encountered on her 1100-mile-hike in a slideshow.

Then, watch Oprah and Cheryl's special two-hour interview on OWN, Oprah.com, Facebook.com/OWNTV and Facebook.com/SuperSoulSunday this Sunday at 11 a.m. ET/PT.

12 must-see stops on the trail