1. Start at the trailhead, heading SE.
2. 200 ftBear left onto Sugarloaf-Shell Ridge Trail, heading E.
3. 0.4 miTurn left onto Briones to Mt. Diablo Regional Trail, heading NW.
4. 0.5 miPass Willow Spring Pond.
5. 0.1 miBear left, heading N.
6. 0.7 miTurn left onto Fossil Hill Trail, heading W.
7. 50 ftPass Bramhall Pond.
8. 250 ftTurn right onto Indian Creek Trail, heading S.
9. 0.3 miContinue straight onto Fossil Hill Trail, heading NW.
10. 250 ftBear right onto Kovar Trail, heading NW.
11. 0.4 miBear left onto Indian Creek Trail, heading W.
12. 150 ftTurn left onto Summit Ridge Trail, heading NW.
13. 50 ftSharp right onto Indian Creek Trail, heading NW.
14. 0.2 miReach Willow Spring Pond, then turn around and head back the way you came.
15. 0.2 miSharp left onto Summit Ridge Trail, heading SE.
16. 50 ftTurn right onto Indian Creek Trail, heading SE.
17. 150 ftBear right onto Kovar Trail, heading SE.
18. 0.4 miBear left onto Fossil Hill Trail, heading SE.
19. 250 ftContinue straight onto Indian Creek Trail, heading SE.
20. 0.3 miTurn left onto Fossil Hill Trail, heading SE.
21. 250 ftTurn right onto Briones to Mt. Diablo Regional Trail, heading S.
22. 0.6 miTurn right, heading E.
23. 0.7 miTurn right onto Sugarloaf-Shell Ridge Trail, heading E.
24. 0.4 miBear right, heading W.
25. 150 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/fossil-hill-willow-spring-pond-out-back-5-lakes-7-km-a171