Lewis Lake Campground

Rustic, lakeside basecamp with boat ramp and quiet nights

InsideYellowstone National Park

Overview

A classic, no-frills forest campground, Lewis Lake sits a short walk from the lake’s southeast shore at about 7,800 feet. It’s NPS‑managed, quiet after dark, and perfectly placed if you’re arriving from the South Entrance or splitting time with West Thumb and Yellowstone Lake.

Campsites & Amenities

Expect roughly 84–85 reservable sites for tents and small rigs. There’s a hard cap on total vehicle length at 25 feet (including trailer), and RV delivery isn’t allowed. Facilities are rustic: vault toilets, seasonal potable-water spigots, bear-proof food lockers, and trash/recycling. You won’t find hookups, showers, or reliable cell service, and generators are not allowed. Quiet hours run 10 pm–6 am; checkout is 10 am; max six people per site.

Season, Fees, and Reservations

The campground typically operates mid‑June to mid‑October with an affordable nightly rate (around $20). Reservations open on a rolling six‑month window and go fast—book as soon as your date opens.

Boating & Fishing

A boat ramp sits by the campground information/registration area, making this one of the easiest places in the park to launch. Canoes, kayaks, and motorboats are allowed on Lewis Lake, but you must have a Yellowstone boat permit and pass an aquatic invasive species inspection. Anglers 16+ need a Yellowstone fishing permit and must follow park regulations.

Campfires & Wildlife

Fires are allowed only in established grates and may be restricted when fire danger is high. Use only dead, downed, and detached wood; drown and stir until cold. This is bear country: store all food and scented items in vehicles or provided lockers and use bear‑resistant trash.

Nearby & Why Pick It

Lewis Falls and the Lewis Canyon overlook are close, and West Thumb Geyser Basin and Yellowstone Lake are an easy drive north. Trails like Heart Lake Loop and the climb toward Mt. Sheridan are within striking distance. Compared with larger campgrounds, Lewis Lake feels more low‑key and woodsy—great if you value a simple lakeside base over amenities.

Best Time to Visit

Peak summer offers the most reliable access and open water spigots. In late September, water is typically shut off—plan to bring/treat water.
Reserve six months out for summer dates. Midweek dates see slightly more availability.
For photography and calm paddling, hit the lake at sunrise or near sunset when winds are lighter and light is soft.

Pros

Short walk to Lewis Lake with a convenient boat ramp
Reservable, NPS‑run sites near the South Entrance/West Thumb corridor

Cons

No hookups, showers, or cell service
Strict 25 ft total vehicle length limit; generators prohibited
Some sites can feel close together

Tips

Book as soon as your six‑month reservation window opens—sites go fast.
Measure your entire rig carefully; the 25 ft total length limit is enforced.
After late September, campground water spigots are typically off—bring/treat water.
No generators or cell service—plan power and downloads ahead of time.
If launching a boat, budget time for the permit and AIS inspection before heading to the ramp.