Rodney Ridge is a 4 mile out and back trail located near Helena, MT. The trail is rated as difficult and primarily used for mountain biking.
Rodney Ridge trail is one that can be done in a variety of lengths and as an edge-of-town hike is very easy to get to. (Except in winter, the road to the trailhead is very steep, and the parking area is equally steep. Ice on both of these means you should park your vehicle at the bottom of Rodney Street and walk up with traction devices on your boots.)