1. Start at the trailhead, heading S.
2. 150 ftBear left, heading S.
3. 0.9 miBear left, heading SE.
4. 0.9 miSharp left onto Bill Patterson, heading E.
5. 50 ftTurn right, heading N.
6. 0.6 miSharp right, heading W.
7. 1.9 miPass Donner Pass.
8. 50 ftPass Petroglyph Cliff.
9. 300 ftTurn right, heading E.
10. 50 ftTurn left, heading E.
11. 50 ftBear right, heading E.
12. 500 ftTurn right onto Tunnel Rock Approach Trail, heading E.
13. 150 ftReach Tunnel Rock, then turn around and head back the way you came.
14. 150 ftTurn left, heading E.
15. 450 ftBear left, heading E.
16. 50 ftTurn right, heading E.
17. 50 ftTurn left, heading E.
18. 0.1 miContinue straight onto Tunnel #6, heading S.
19. 1.9 miSharp left onto Bill Patterson, heading NW.
20. 0.6 miSharp right, heading S.
21. 0.9 miBear right, heading W.
22. 0.9 miBear right, heading N.
23. 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/tunnel-rock-petroglyph-cliff-out-back-4-cliffs-15-km-833f