1. Start at the trailhead, heading SE.
2. 0.1 miBear left, heading E.
3. 1.8 miTurn right, heading E.
4. 50 ftPass Donner Pass.
5. 50 ftPass Petroglyph Cliff.
6. 50 ftTurn left, heading E.
7. 50 ftBear right, heading E.
8. 500 ftTurn right onto Tunnel Rock Approach Trail, heading E.
9. 150 ftReach Tunnel Rock, then turn around and head back the way you came.
10. 150 ftTurn left, heading S.
11. 500 ftBear left, heading W.
12. 50 ftTurn right, heading W.
13. 50 ftTurn left, heading W.
14. 0.1 miContinue straight onto Tunnel #6, heading W.
15. 1.7 miBear right, heading NW.
16. 0.1 miArrive 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/donner-pass-out-back-6-km