- Marble Mountain Wilderness
- Marble Mountain PCT Adventure
- Seiad Valley Trailhead to Etna Summit Trailhead = 55.8 miles
- Seiad Valley Trailhead to Grider Creek Campground @ 6.5 miles
- Grider Creek Trail at Road 46N72 @ 14.1 miles
- Buckhorn Spring @ 20.8 miles
- Bear Lake – Turk Lake Trails @ 24.8 miles
- Paradise Lake @ 26.4 miles
- Marble Valley Guard Station / Canyon Creek Trail @ 31.7 miles
- Red Rock Valley Trail / Cold Spring Trail @ 35.0 miles
- Older PCT route to Kidder Lake Trail @ 40.2 miles
- Shelly Fork Trail / Shelly Meadows Trail @ 44.6 miles
- Etna Summit @ 55.8 miles
Backpacking / Botany / Caves / Fall / Geology / Long-distance Trekking / Marble Mountain Wilderness / Siskiyou County / Spring / Summer