Lonesome Highway — Gravelly Range Road to Hilgard Peak via the Madison Valley Rim

The Gravelly Range Road — designated BLM and Beaverhead-Deerlodge National Forest route running roughly north-south above the west bank of the Madison River — is one of southwest Montana’s most rewarding and underused overland drives. Starting near Cameron on US-287 and climbing to over 9,000 feet along an open ridge, the road delivers sustained panoramic views of the Madison Range across the valley, with Hilgard Peak’s 11,316-foot summit dominating the eastern horizon. The route traverses high grass benches grazed by elk and pronghorn, passes through scattered aspen groves, and drops into Wade and Cliff Lakes basin near the south end — a series of glacial lakes that offer outstanding dispersed camping and fishing. The road surface is loose gravel and native dirt; exposed on the crest, it can be sloppy after afternoon thunderstorms.

High-clearance 4WD is strongly recommended, especially on the northern approach where the road steepens and the drainage channels cut deep ruts after rain. This isn’t a technical trail — it’s a high, exposed, remote overland traverse with real consequences if weather turns. No permit required. Fuel in Ennis before heading south; there’s nothing in between. The Madison Valley has reliable dispersed camping along the lower approaches. Snow can fly here by late September; the best window is late June through mid-September. Cell service drops to zero above the valley floor.