It's not just the towering mountains, dry deserts and extreme weather that make the trail challenging.
In handmade trousers with retrofitted eyeglasses and vintage camping supplies, Ben Jenkins will re-enact the 1860s on a 35-day hike along the mountainous Colorado Trail.
Inspired by the popular blog, "Humans of New York," a Fort Collins man walked The Colorado Trail and documented the stories of those he met.
When Jamey Mossengren hit the trail, he decided to leave the bear repellent behind. It was too heavy. Six minutes later, he encountered three bears.