The Main Salmon River in central Idaho runs roughly 80 miles through the Frank Church–River of No Return Wilderness, the largest contiguous wilderness area in the lower 48 states. The wilderness section — from Corn Creek to the Carey Creek or Vinegar Creek take-out — is one of the premier multi-day river trips in North America, offering Class III whitewater, natural hot springs, historic homesteads, towering ponderosa pines, and what many river runners consider the best beach camping on any river anywhere.
Camping on the Main Salmon falls into two categories: the river beach camps you’ll sleep on during a multi-day float, and the developed campgrounds at the put-in and take-out where you stage before and after your trip. Both matter to trip planning, and both are covered here.
1. Upper Allison Ranch Camp (River Mile ~50)
Upper Allison Ranch is consistently cited by experienced Main Salmon boaters as one of the best campsites on the river. Located on river right roughly midway through the wilderness section, the camp features a large, flat white-sand beach with ample room for a big group, a shaded kitchen area under mature ponderosa pines, and easy access to the water for swimming and fishing. The views up and down the canyon are excellent, and the site gets good afternoon shade — a genuine luxury on the Main Salmon in midsummer, when shade can be scarce at many camps.
This is a reservable campsite. Some Main Salmon camps operate on a first-come, first-served basis, while others require advance reservation through the permit system. Reserved sites must be occupied by 7:00 p.m. MST; if no one arrives by that time, the reservation is forfeited and the site becomes available. Check current reservation requirements with the Salmon-Challis National Forest ranger district before your trip.
2. Rabbit Creek Camp (River Mile ~60)
Rabbit Creek is another favorite among river runners, located on river right in the lower half of the wilderness float. The camp sits on a spacious sandy beach with a clear side creek flowing in nearby — a feature that makes some Main Salmon camps especially appealing, as the cold creek water contrasts with the warm main river (water temperatures can reach near 70°F by midsummer). The beach is large enough for volleyball, frisbee, or simply spreading out, and the surrounding pine forest provides pockets of shade for cooking and sleeping.
Like most Main Salmon camps, the site’s character changes significantly with water levels. At low water (later in summer), the beach expands and more sandy area becomes available. At high water (June), some beach camps can be partially or fully submerged. This is a critical planning factor — what looks like a large camp on a low-water trip may not exist at all during a high-water June float. Use GPS or a river guide app to confirm site availability based on current flows.
3. Corn Creek Campground (Put-In Staging)
Corn Creek Campground is where the road ends and the wilderness begins — it’s the standard put-in for Main Salmon float trips. Located 46 miles west of North Fork, Idaho, on a partly paved, partly dirt road that takes roughly 2.5 hours to drive from the town of Salmon, Corn Creek sits at the boundary of the Frank Church Wilderness. Most guided outfitters and private boaters launch from here.
The campground has basic amenities: established sites, pit toilets, and river access. Many float groups arrive the evening before their launch date and camp here overnight, packing boats and rigging in the morning. It’s first-come, first-served and can get busy during peak season (late June through August). The town of Salmon is your last reliable stop for groceries, gas, and supplies — there’s a small convenience store near the Corn Creek turnoff, but don’t count on it for a full resupply, especially early or late in the season.
Plan your logistics carefully: it’s a roughly 10-hour drive from Corn Creek around to the take-out at Carey Creek/Vinegar Creek near Riggins. Most groups arrange a vehicle shuttle service in advance or fly one leg (small charter flights operate between Salmon and McCall).
4. Carey Creek / Vinegar Creek Take-Out Area
The standard take-out for Main Salmon wilderness floats is at Carey Creek or Vinegar Creek, roughly 28 miles east of Riggins, Idaho. The take-out area provides river access, basic parking, and enough space to derig boats and load vehicles. From here, it’s a scenic but winding drive along the Lower Salmon River canyon to Riggins on Highway 95.
If you’re running your own shuttle, your vehicle (or shuttle driver) will be waiting here. Most outfitters handle the take-out logistics, but private boaters should confirm the exact take-out location and shuttle arrangements well in advance — the canyon road between Riggins and the take-out is remote and has limited cell service. Riggins, a small river town at the confluence of the Salmon and Little Salmon rivers, offers basic services including gas, food, and lodging for post-trip recovery.
How Main Salmon River Camping Works
On the wilderness float, all camping is on river beaches — there are no developed campgrounds between Corn Creek and the take-out. Camps are sandy bars along the river, often backed by ponderosa pines, with no facilities of any kind. You carry everything in and carry everything out, including human waste (a portable toilet system is required by permit). River water is potable if filtered.
The Main Salmon’s beach camps are famously spacious compared to many western river trips. The broad sandy beaches provide room for large groups, and the warm midsummer water temperatures make the river itself a central part of the camping experience — swimming, floating, and playing in the water are as much a part of camp life as cooking and sleeping. Many people sleep under the stars rather than in tents, and the dark-sky views from the bottom of the canyon are exceptional.
A few important regulations and tips for camping on the Main Salmon wilderness section: maximum group size is 30 people year-round; some campsites are reservable while others are first-come, first-served; sand stakes are required to secure boats at camp; dogs are permitted; and campfires may be restricted during fire season. Bear canisters are not required, but keep all food secured in locked coolers and dry bags overnight. Always check current regulations with the Salmon-Challis National Forest and review the Frank Church Wilderness Management Plan before launching.
The float season typically runs from late May through September. Early-season trips (June) feature higher water, faster current, and occasional Class IV rapids — trips run in 4–5 days. Later-season trips (July–August) bring warmer water, slower flows, and more time for side exploration — these typically take 5–6 days and are the best option for families. About 10,000 people float the Main Salmon’s wilderness section each year.
For more Idaho and western river adventures, see our guides to river rafting and float trip planning. If you’re exploring the broader region, our Alaska adventure guide covers similarly remote wilderness destinations.
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