If you've read Cheryl Strayed's memoir, "Wild: Lost and Found on the Pacific Crest Trail," you'll be familiar with her particular tone: a combination of lyrical feminism and gritty self-help manual. Her book chronicles the three months she spent hiking the United States' Pacific Crest Trail (fondly known among mountaineers as the PCT) in 1995 — a journey of more than 1,700 km starting in the Mojave Desert and ending at the border between Washington and Oregon.

Her journey was grueling and often unrewarding, and her months spent on the trail were defined by pain and hunger and the nagging question, "What am I doing here?"

But since the publication of "Wild" in 2012, Strayed has inspired women across four continents to ditch their cars, grab a backpack and start walking.