Lonesome Highway — Seedskadee to South Pass via the Oregon Trail Desert Corridor

The high desert between the Green River and South Pass is one of the most historically loaded pieces of ground in the American West, and almost nobody drives it anymore. This route picks up near Seedskadee National Wildlife Refuge south of Farson, threads through the sagebrush sea of the Great Divide Basin, and climbs onto the broad, windswept saddle where an estimated 400,000 emigrants crossed the Continental Divide on the Oregon, California, and Mormon trails. You’ll pass Register Cliff equivalents in miniature — sandstone outcrops with names scratched by forgotten hands — and drop into South Pass City State Historic Site, a remarkably preserved 1860s gold camp with original structures still standing. The route runs roughly 70 miles on BLM two-track and county gravel, with the Atlantic City Road junction serving as a key mid-route waypoint.

Difficulty is moderate — flat terrain but soft sand and alkali sections punish low-clearance rigs and eat tires. High-clearance 4WD is the minimum; aired-down tires to 25 psi are strongly recommended in the basin. No water exists between Farson and South Pass City — carry at least 10 gallons. Cell service is essentially zero. Best season is June through September; spring brings mud that’ll bury you. No permit required. BLM dispersed camping throughout the basin. This is a slow, reflective drive — not a rock-crawl — and the payoff is proportional to how seriously you take the history under your wheels.