Summary The First and Second Flatiron Trail is an out-and-back hike of just 1.4 miles each way (2.7 miles round-trip). This is a short, but steep hike (11° average), with an elevation change of 1,420 vertical feet. I would rate this hike as difficult owing to the altitude gain, rocky terrain and rock scramble near
Overview The Eldorado Canyon Trail is an out-and-back trail of 3.25 miles each way (6.5 miles round-trip). There are steep climbs at the beginning and end, with an elevation change of 1,585 vertical feet. I would rate this hike as moderately difficult due to the climb and rocky terrain: it is a great day hike.