Lewis Lake

Mirror-calm Lewis Lake at 7,782 ft; fed by the Lewis River and warmed by springs.

Insider tip

Dawn light on the lake yields the best reflections;

Insider tip

Check wind forecasts before your walk;

The light

Morning fog mirrors the lake at dawn; alpenglow on the mountains at sunset

Heads up

Water is icy (≈41°F/5°C) even in summer. Bears occur in the area; carry bear spray and follow bear safety protocols. Wind and waves can make the lake dangerous…

Natural Attraction

Natural Attraction★ 4.7
Geological Feature7,782 ftmid-June - early NovemberRestrooms availableNo permit neededGolden-hour pick

Gray-blue water mirrors the pines and the distant Tetons. Morning fog can lock the surface in a glassy sheet, then a breeze lifts the stillness. The lake is a hydrologic node: the Lewis River feeds Lewis Lake, which drains toward the Snake River, with warm springs infusing the shorelines.

Getting there & parking

How To Get There
From the South Entrance, follow US-287/89/191 along the east side of Lewis Lake to the Lewis Channel Trailhead or Lewis Lake Campground; park and access the shore via the Lewis River Channel Trail or continue along the north shore via the Lewis Lake Trail
Distance From Entrance
Varies
Road Type
Paved
Parking Availability
Parking at the Lewis Channel Trailhead; additional parking at Lewis Lake Campground
Peak Fill Times
Early morning
GPS Coordinates
44°18′16″N 110°37′46″W

When to go

Best Time To Visit
Late spring, summer, and fall. The Lewis Lake Campground operates mid-June to early November. Morning fog creates mirror-like conditions; alpenglow lights the Tetons at sunset.
Best Visit Times
Mid-June to early September; mornings for fog-mirror conditions; alpenglow at sunset
Sunrise Sunset Quality
Morning fog mirrors the lake at dawn; alpenglow on the mountains at sunset
Best Season
Late spring through fall
Busiest Season
Mid-July to August
Seasonal Access
Campground open mid-June to early November; road access generally seasonal and weather-influenced
Road Opening Dates
Late May–October
Snow Lingering
April–June
Winter Access
Not accessible by vehicle; limited winter access via snow routes
Weather Patterns
Wind can develop quickly; weather can shift to storms; cool nights persist
Wildflower Peak
July–August
Fall Colors Peak
September–October

What you will experience

Attraction Type
Geological Feature
Main Features
Lewis Lake; Lewis River inflow/outflow; NW and southern shore hot springs; proximity to Lewis Falls and Pitchstone Plateau
What Youll See
Calm blue-green lake, pine-dominated shoreline, and distant Teton peaks; the Lewis River winds along the shore with canyon glimpses to the south
Unique Characteristics
One of Yellowstone's four largest lakes; high-elevation lacustrine system at 7,782 ft; connects hydrologically to the Snake River drainage; geothermal inputs from nearby springs
Photo Opportunities
Dawn fog reflections, glassy surfaces at calm mornings, and alpenglow on the peaks at sunset
Photography Spots
Lakeside views from the shoreline; dawn reflections; Tetons framed by pines
Best Viewpoints
Along the lakeshore from the Lewis River Channel Trail; vantage toward the Teton range with the lake in the foreground
Common Wildlife
Elk, moose, pronghorn, bears (grizzly and black), river otters
Best Wildlife Times
Spring and fall; dawn and dusk
Geological Formation Type
Lacustrine basin
Scientific Interest
Yellowstone hydrology and the influence of geothermal inputs on lake chemistry; connection to Snake River drainage
Stargazing Quality
Dark skies with low light pollution; best after midnight on clear nights

Facilities, fees & access

Entry Fees
Varies
Permits Required
No
Restrooms Available
Yes
Restroom Type
Vault toilets
Picnic Areas
Yes
Water Available
Yes
Cell Service
No cell service
Interpretive Signs
No
Accessibility
Campground facilities are accessible; trails are gravel/dirt with limited gradient changes; interpretive signage at Lewis Lake is not explicitly listed
Accessibility Level
Drive-up view; campground has accessible facilities; trails are mostly compacted gravel/dirt with limited gradient changes
Nearby Services
Grant Village (~10 miles north); Lewis Lake Campground facilities
Nearby Facilities
Grant Village, Lewis Lake Campground, picnic area, vault toilets, potable water at campground
Family Friendly Notes
Bear country; keep children close; supervise near water and on trails; follow campground rules

Safety

Safety Considerations
Water is icy (≈41°F/5°C) even in summer. Bears occur in the area; carry bear spray and follow bear safety protocols. Wind and waves can make the lake dangerous; stay back from shore and supervise children. There is no barrier or railing along most edges and cell service is absent.

Nearby

Nearby Attractions
Shoshone Lake, Lewis Falls, Pitchstone Plateau, Grant Village
Connecting Trails
Lewis River Channel Trail, Lewis Lake Trail
Trailheads Here
Lewis Channel Trailhead; Lewis Lake Trail

Planning advice

Insider Tips
  • Dawn light on the lake yields the best reflections;
  • Check wind forecasts before your walk;
  • Carry bear spray and follow bearsafety;
  • Download offline maps due to lack of cell service;
  • Parking available at the trailhead and campground
Tips Advice
  • Look for morning fog that creates a mirror on the lake; calm conditions often occur at dawn.
  • Bear spray is recommended on trails; stay on established paths and keep children close.
  • Water is very cold (about 41°F / 5°C) in summer; dress in layers and avoid swimming.
  • Cell service is unavailable at Lewis Lake Campground; download maps offline and plan ahead.
  • Parking is available at the Lewis Channel Trailhead and at the Lewis Lake Campground; arrive early in peak season.
  • Lewis River Channel Trail is 2.8 miles round trip with light elevation gain; Lewis Lake Trail runs along the north shore for over eight miles.

More details

Park Area
Yellowstone National Park
Elevation Feet
7782
Visitor Center Present
No
Guided Tours Available
No
Waterfall Height
30
Lake Size
2700 acres
Fishing Nearby
No
Swimming Allowed
No
Boating Allowed
No
Climbing Areas
No
Review Summary
Rating 4.7 from 29 reviews. Lewis Lake sits at roughly 7,800 feet and spans about 2,700 acres, with easy drive-in access via US-191. The area offers a quiet, high-elevation setting near Yellowstone's broader landscape. Visitors describe calm mornings suitable for wildlife watching, but be aware that wind can create waves, the water rarely exceeds 50°F (10°C), and cell service is limited across much of the park.

Location

Frequently asked questions

Do I really need to arrive before 7am to get parking?

Parking exists at the Lewis Channel Trailhead and Lewis Lake Campground, but spaces fill during peak season; arriving early improves chances of a convenient spot.

Is the 2.8-mile Lewis River Channel Trail to the lakeshore worth the effort?

Yes. It yields immediate lake views, access to reflective mornings, and a clear line of sight toward the distant Tetons with light elevation gain.

Can I bring my dog to the Lewis Lake area?

Dogs are allowed in Yellowstone but must remain on leash where permitted; check local rules before hiking the channels or shoreline.

Is the water actually cold, or is it just photos?

The water averages about 41°F (5°C) in summer; prepare for near-freezing immersion and avoid swimming unless properly equipped.

Is there cell service at Lewis Lake?

No. There is no cell service at the campground; plan ahead and download maps offline.

Grand Prismatic Spring

Rainbow rim of a hot spring; colors arise from thermophiles in Yellowstone's volcanic system.

Yellowstone Lake

Caldera lake tilted by resurgent domes; hydrothermal vents dot the lakebed.

Lake Butte Overlook

Panoramic view of Yellowstone Lake from the caldera rim; distant Tetons on clear days.

Artist Point

Lower Falls overlook; canyon walls colored by hydrothermal alteration of rhyolite.

Gibbon River

84 ft Gibbon Falls; river through hydrothermal basins along Grand Loop Road.

Gibbon Falls

84-foot cascade over an ancient Yellowstone lava flow; drive-up overlook with a wheelchair-friendly path.

Sources

Last updated January 2026. Report an issue.