The Coalton Trail is 3.0 miles long and gains about 400 feet of elevation between the trailhead at the intersection of Coalton Road and McCaslin Blvd and the trailhead on Highway 128. The Coalton Trail used to be County Road 25 and Coalton Road; vehicle traffic is no longer allowed. The trail is popular with walkers, runners, and bicyclists. As far as mountain bike rides go, this one is very easy technically. The one short steep section demands a high level of exertion.
From Mccaslin Blvd, the trail climbs gently for about two thirds of a mile. The next half mile contains a steep climb; after that the trail climbs gradually to the trailhead on Highway 128. Once you reach the top of the steep section, you are rewarded with spectacular views of the front range.