Park-boundary trailhead
Thornton River Trail from Route 612
A trailhead on the park boundary, reached from Route 612. You do not pass an entrance station, but a park entrance pass is still required.
- Route 612
- No parking on the road shoulder
- poor
- Open, limited parking
- Required
- Thornton River Lower Trail
- The Park Service lists no usable public parking here, so we don't give drive times or rank stays to it.
Sources
- Recommended Park Boundary Access (July 2025), National Park Service. Page updated Jul 1, 2025. Checked Oct 29, 2026.
- NPS public GIS data: parking lots, points of interest, mile markers, trails and roads, National Park Service. Checked Oct 29, 2026.