On April 30, 1978, 9-year-old Chris Vigil went missing on a hike in Colorado's Roosevelt National Forest. For the next four decades, with no trace of him ever found, searchers and residents of his small town were left with nothing but questions. What happened to Chris? And how does it tie into the unknown number of people who have vanished from our public lands?

Dive into Fort Collins history, and beneath the waters of Horsetooth Reservoir, where remnants of a Colorado quarry ghost town still exist.

Dive into Fort Collins history, and beneath the waters of Horsetooth Reservoir, where remnants of a Colorado quarry ghost town still exist.