South Boundary Trail: Bechler RS-Grassy Lake Road

Yellowstone National Park

strenuous

Length: 6.85 mi

Est. time: 2h 36m

Gain: 328 ft

Loss: 764 ft

Max elev: 6,551 ft

Point-to-pointTrail class 1Earthhike

Elevation profile

+328 ft gain · −764 ft loss — an estimate from a DEM.

Trailhead & logistics

Cave Falls Campground (Campground)

Build a loop

stitched loop

Fish Lake-Mountain Ash Cutoff Trail + South Boundary Trail: Bechler RS-Grassy Lake Road

9.1 mi · +425 ft · ~3.4 hr (est.)

Connects to:

Fish Lake-Mountain Ash Cutoff Trail 9C6 Campsite Spur Trail Bechler River Trail

Connect the dots

Learn:

A Bear's Menu Atomic Elements and Archeology: Tracing Ancient Resource Access and Trade Routes Using XRF Dueling Mandates: Preservation and Use of National Parks Hard Core Rock How Geysers Erupt Imaginary Yellowstone Road Trip

Journeys:

Thomas Moran Horace M. Albright Philetus W. Norris William Henry Jackson Ferdinand Hayden

Plan smart, verify on site

Length, elevation, and difficulty are estimates derived from open data (NPS Public Trails GIS, high confidence) — not a safety guarantee. Conditions change; check current closures, weather, and water, and carry the essentials. Always defer to NPS.gov and park rangers.

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