Lewis Lake, Yellowstone National Park

Q: 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.

Q: 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.

Q: 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.

Q: Is there cell service at Lewis Lake?

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

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Type

Geological Feature

Accessibility

Drive-up view; campground has accessible facilities; trails are mostly compacted gravel/dirt with limited gradient changes

Best Season

Late spring through fall

Busiest Season

Mid-July to August

Features

Lewis Lake; Lewis River inflow/outflow; NW and southern shore hot springs; proximity to Lewis Falls and Pitchstone Plateau

Elevation

7,782 ft

Overview

About This Attraction

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.

Quick Facts

Type

Geological Feature

Elevation

7,782 ft

Access

Drive-up view; campground has accessible facilities; trails are mostly compacted gravel/dirt with limited gradient changes

Main Features

Lewis Lake; Lewis River inflow/outflow; NW and southern shore hot springs; proximity to Lewis Falls and Pitchstone Plateau

What You'll 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

What Makes It Special

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

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.

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.

Visitor Tips

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.

Details

Location & Features

Type: Geological Feature

Elevation: 7,782 ft

Distance from Entrance: Varies

GPS: 44°18′16″N 110°37′46″W

What Makes It Unique:

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

Water Feature Details

Height: 30

Size: 2700 acres

Geology

Formation Type: Lacustrine basin

Scientific Interest:

Yellowstone hydrology and the influence of geothermal inputs on lake chemistry; connection to Snake River drainage

Getting There

Directions:

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

Access Type: Drive-up view; campground has accessible facilities; trails are mostly compacted gravel/dirt with limited gradient changes

Road: Paved

Seasonal Access: Campground open mid-June to early November; road access generally seasonal and weather-influenced

Parking: Parking at the Lewis Channel Trailhead; additional parking at Lewis Lake Campground

Entry Fees: Varies

Trails

Trailheads Here:

Lewis Channel Trailhead; Lewis Lake Trail

Connecting Trails:

Lewis River Channel Trail, Lewis Lake Trail

Photography & Viewing

Best Viewpoints:

Along the lakeshore from the Lewis River Channel Trail; vantage toward the Teton range with the lake in the foreground

Photo Opportunities:

Dawn fog reflections, glassy surfaces at calm mornings, and alpenglow on the peaks at sunset

Best Photo Spots:

Lakeside views from the shoreline; dawn reflections; Tetons framed by pines

Sunrise/Sunset: Morning fog mirrors the lake at dawn; alpenglow on the mountains at sunset

Stargazing: Dark skies with low light pollution; best after midnight on clear nights

Facilities

Restrooms (Vault toilets)
Potable Water
Picnic Areas

Cell Service: No cell service

Wildlife & Nature

Common Wildlife:

Elk, moose, pronghorn, bears (grizzly and black), river otters

Best Wildlife Viewing: Spring and fall; dawn and dusk

Wildflower Peak: July–August

Fall Colors Peak: September–October

Seasonal Information

Best Season: Late spring through fall

Best Times: Mid-June to early September; mornings for fog-mirror conditions; alpenglow at sunset

Road Opens: Late May–October

Busiest: Mid-July to August

Parking Fills: Early morning

Snow Until: April–June

Winter Access: Not accessible by vehicle; limited winter access via snow routes

Weather:

Wind can develop quickly; weather can shift to storms; cool nights persist

Nearby

Nearby Attractions:

Shoshone Lake, Lewis Falls, Pitchstone Plateau, Grant Village

Nearby Services:

Grant Village (~10 miles north); Lewis Lake Campground facilities

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

Visitor Information

Accessibility:

Campground facilities are accessible; trails are gravel/dirt with limited gradient changes; interpretive signage at Lewis Lake is not explicitly listed

Family Friendly:

Bear country; keep children close; supervise near water and on trails; follow campground rules

Nearby Facilities:

Grant Village, Lewis Lake Campground, picnic area, vault toilets, potable water at campground

Reviews

★★★★☆

4.7 /5

Based on 29 Google reviews

Based on 29 guest reviews

" 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."

FAQs

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?

Can I bring my dog to the Lewis Lake area?

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

Is there cell service at Lewis Lake?