Getting Oriented
The road, signed as Forest Road 300, threads the lake country on the east side of the Wind River Range between Sinks Canyon and South Pass. Sinks Canyon State Park sits at the northern end, where the Middle Fork of the Popo Agie River disappears into a limestone cave and rises again downstream. From there the road climbs into the Shoshone National Forest past a string of subalpine lakes and reservoirs before descending toward the South Pass mining district. The Washakie Ranger District manages the route.
Trail Overview
The Loop Road is narrow, winding, graded dirt for most of its 26 miles, with pullouts and lake access along the way. It tops out near 9,000 feet, so it holds snow late; the Forest Service gates it through the winter and usually opens it in stages from mid-June, sometimes opening the lower ends before the middle. A high-clearance vehicle is the right tool, though the road sees passenger cars in dry midsummer conditions. Check the district for current gate status before relying on a through-trip.
Points of Interest
- Sinks Canyon. At the north end, the Popo Agie River vanishes into the Sinks and reappears at the Rise, a quarter mile downstream.
- The lakes. Worthen Reservoir and Frye, Fiddlers, and Louis lakes line the route, with fishing, boat access, and Forest Service campgrounds.
- South Pass. The southern end reaches the historic mining country near South Pass City, where the Oregon and California trails crossed the Continental Divide.
Where to Camp
The Shoshone National Forest runs several developed campgrounds along the route, including sites at Worthen Reservoir and Louis Lake, and dispersed camping is allowed on much of the surrounding forest. Sinks Canyon State Park has campgrounds at the north end. Nights are cold at altitude even in summer.
Tips for a Safe and Enjoyable Trip
- Check the gate status. The road opens in stages from mid-June, and the middle section can stay closed after the ends open.
- Drive for the surface. It is narrow with blind corners, so yield to downhill traffic and watch for oncoming vehicles at pullouts.
- Carry layers and rain gear. Weather at 9,000 feet shifts quickly.
- Top off in Lander. There is no fuel or water on the route.
- This is bear country, so store food and scented items securely.
Fuel and Water
Lander, at the north end, is the last full-service town with fuel, water, and groceries. There is no fuel on the Loop Road, and lake water needs treating.
Nearby
Sinks Canyon State Park anchors the north end with the river's disappearing act and a visitor center. South Pass City State Historic Site, a preserved gold-rush town, sits near the southern end. Lander has lodging, outfitters, and the climbing crags of Sinks Canyon and Wild Iris.
