Colton Carlson is a retired US Marine who lost his legs from injuries sustained during a tour of duty in Afghanistan. Originally from Colorado, home of The Rocky Mountains, Colton joins us from his home in Vermont, where he and his family settled after Colton earned a degree in Mathematics from Dartmouth. In this episode of Nature Revisited, Colton talks about his life before and after his assignment, his life-changing incident on duty, and how his love of nature helped him overcome immense challenges to reclaim his health, independence, and pursuit of outdoor activities and sports including his passion: mountain climbing.