1. Start on County Road 92J, heading W.
2. 250 ftSharp left onto Middle Saint Vrain Trail, heading SE.
3. 0.5 miTurn right onto Sourdough Trail, heading E.
4. 50 ftContinue straight onto Middle Saint Vrain Trail, heading E.
5. 250 ftContinue straight onto Sourdough Trail, heading S.
6. 2.8 miSharp left, heading SW.
7. 1.4 miTurn right onto South Saint Vrain Trail, heading SE.
8. 0.1 miTurn left onto James Basin Road, heading SW.
9. 0.8 miReach Sourdough Trail, then turn around and head back the way you came.
10. 0.8 miTurn right onto South Saint Vrain Trail, heading NW.
11. 0.1 miTurn left, heading E.
12. 1.4 miSharp right onto Sourdough Trail, heading NE.
13. 2.8 miContinue straight onto Middle Saint Vrain Trail, heading NE.
14. 250 ftContinue straight onto Sourdough Trail, heading W.
15. 50 ftTurn left onto Middle Saint Vrain Trail, heading W.
16. 0.5 miSharp right onto County Road 92J, heading NW.
17. 50 ftArrive back at the trailhead.

Each distance is the walk from the previous step. Tap a step for a map of its junction.

Trail map, photos and weather for this hike: www.ambleway.com/hikes/sourdough-trail-south-saint-vrain-trail-out-back-20-km-de0b