Overview
Henry's Fork Basin is the heart of the Kings Peak corridor in Ashley National Forest, and reaching it is a worthwhile objective even for hikers with no interest in summiting Utah's highest peak. The basin is a textbook glacial cirque: a broad bowl carved by ancient ice and now filled with dozens of lakes, braided streams, and meadows that hold wildflowers, moose, elk, and marmots in summer. The surrounding peaks top 13,000 feet and provide a dramatic frame for the entire basin.
The 13-mile route to Elkhorn Crossing in the upper basin follows the first two-thirds of the Kings Peak trail, sharing the approach with summit-bound hikers before the route diverges at the upper basin. Because this itinerary stops well short of Gunsight Pass, it is the more attainable option for hikers who want the High Uintas backcountry experience without the full summit commitment. The 2,800 feet of elevation gain over 6.5 miles one-way is still demanding, particularly for hikers not accustomed to starting above 9,400 feet.
Most hikers treat this as an overnight or two-night trip, camping in the basin and spending time fishing, exploring the lake circuit, and watching the light move across the peaks in evening. The approach is the same as the Kings Peak route; see that guide for the summit extension.
The Route
Miles 0 to 3: Henry's Fork Trailhead to Forest Transition. The trail starts at 9,440 feet and climbs gently through lodgepole pine and spruce alongside Henry's Fork Creek. The creek is clear and cold, with a series of small meadows that open the forest periodically. Wildlife is most active early in the morning here: moose are frequently spotted in the willows near the stream, especially in the first two miles. Two creek crossings in the lower section are typically manageable on logs or stepping stones but can be deeper in early July.
Miles 3 to 7: Lower Basin Opening. The forest begins to thin above mile 3 as the trail gains the lower lip of the basin. The views ahead expand to reveal the sweep of the upper basin and the 13,000-foot Uinta crest. The trail crosses several additional stream braids in this section. In late July, paintbrush, aster, and columbine are visible along the trail margins. The Uinta landscape feels bigger and more open than most Rocky Mountain terrain; the gentle grades of the tundra plateau contrast with the dramatic scale of the surrounding peaks.
Miles 7 to 9: Upper Basin Approach and Elkhorn Crossing. The trail steepens slightly approaching the upper basin and passes a series of named lakes: Grass Lake, Summit Lake, and others that are accessible on short social trails from the main route. Elkhorn Crossing at mile 9 sits at 10,700 feet and is the primary camping area in the basin. The site has flat tent platforms, a reliable water source in Henry's Fork Creek, and morning views of the main crest that are among the best in the Uintas. This is the turnaround point for the standard basin route.
Miles 9 to 13: Return. Retrace the route to the trailhead. The return trip generally feels longer than the approach; start early enough to complete it comfortably before afternoon storms develop.
When to Visit
Mid-July through late September is the reliable season for Henry's Fork Basin. The lower trail is often passable by early July, but the upper basin may hold snow patches through mid-month. Wildflowers peak between late July and mid-August. September brings fall colors in the willows and aspens of the lower trail, cooler temperatures, and significantly fewer hikers. Be prepared for overnight freezes any time in September.
Afternoon thunderstorms are frequent in July and August. The upper basin is exposed; plan to be at camp or descending below treeline before early afternoon.
What to Bring
Many hikers carry the following for an overnight trip to Henry's Fork Basin:
- Backpacking shelter and 20-degree or warmer sleeping bag
- Water filter (water is abundant but must be treated)
- Bear canister or bear hang system (see bear canister requirements)
- Trekking poles (useful on the creek crossings and return descent)
- Layering system including insulation and rain shell
- Fishing gear if desired (brook trout and cutthroat are present)
- Downloaded offline topo map (no cell service throughout)
Review Leave No Trace principles for basin camping, particularly the 200-foot buffer from water sources and the importance of camping on durable ground.
Practical Details
No permit is required to enter the High Uintas Wilderness or camp in Henry's Fork Basin (as of 2026). Group size is limited to 12 people combined with stock. Campfire restrictions apply; campfires are not recommended above treeline and are frequently prohibited during dry periods.
Fishing requires a valid Utah or Wyoming license depending on your location within the drainage, which sits near the state line. Check regulations carefully.
The nearest services are in Mountain View, Wyoming (approximately 35 miles) and Evanston, Wyoming (approximately 70 miles). Cell service is nonexistent throughout. File a trip plan before departing.
Getting There
From Mountain View, Wyoming, head south on Wyoming Highway 410 toward Lonetree, then follow signs toward Henry's Fork. The road turns to unpaved surface approximately 7 miles before the main trailhead. High-clearance is strongly recommended for the final segment. A passenger car can typically reach a lower staging area but the main trailhead requires clearance. On summer weekends the parking lot fills by mid-morning; arrive early or plan to park below. Total drive from Salt Lake City is approximately 2.5 to 3 hours.