I hiked most of Colorado Trail (from Durango to Copper Mountain) in 2013 during my two week vacations and finished the last 90 miles in 2017. I did the wester loop through the Collegiate Peaks almost by accident as I didn’t even know there was such a thing as the “western loop”. The trail wasn’t quite completed that year. Luckily I took a left turn somewhere, got lost and then after quite a bit of confusion I figured out what was going on…There’s a fork on the trail; east and west! West is the better (and most challenging) one. Lost fifteen pounds in fifteen days on this trail as I did on the Arizona Trail.