Spillway Lake Trail in Yosemite National Park

Yosemite National Park, CA

Spillway Lake Trail

Four miles each way to a high-country lake past wet meadows.

Length
8mi
Time
5hr
Elev. change
843ft
Difficulty
Moderate
  • No dogs
  • High point 10,453 ft

Hear the audio tour

Mono Pass

Overview

About Spillway Lake Trail

Why go

  • A gradual high-country approach ends at a real alpine lake.
  • Midsummer red mountain heather adds a vivid detail to the meadow walk.

Heads up

  • Several unbridged creek crossings can be cold and fast at snowmelt.
  • Mud and marsh near the lake slow the final stretch.

Map & elevation

The route

Loading the Yosemite map
Full map
Elevation9,610–10,453 ft
TrailheadMono Pass Trailhead37.89101, -119.26246
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Plan your hike

Before you go

Parking

Start at Mono Pass Trailhead on Tioga Road. The lot has about a dozen spaces; when it fills, nearby roadside pullouts can add up to a half-mile walk.

Best time to go

The trailhead is on Tioga Road and is reachable by vehicle only while that road is open, usually from late May or June into October or November; dates shift with snow. The small lot has about a dozen spaces, and a full lot can mean using a nearby pullout and walking as much as half a mile. There’s a vault toilet and animal-safe food storage at the trailhead. Pets and bicycles aren’t allowed on park hiking trails.

Safety

Several stream crossings are unbridged and can run high, cold and swift during snowmelt. The last meadow and lake edge can be muddy or marshy, and the western shore requires an additional inlet or outlet crossing.

4 active Yosemite alerts

  • ClosureDome Fire closes Glacier Point Road and trailsGlacier Point Road is temporarily closed because Dome Fire smoke reduces visibility and to allow firefighting operations; some trails south of the road are also closed.Official details
  • CautionMist Trail access limited during October repairsThe Mist Trail between its John Muir Trail junction above the Vernal Fall footbridge and the top of Vernal Fall has limited access through October for repair work.Official details
See all 4 alerts
The Parkwolf Tour Guide on a dash-mounted phone, driving into Yosemite Valley

“Mono Pass Trailhead is coming up, for a high-country walk from wet meadows to the drier Sierra crest. Allow five to seven hours for the eight-mile round trip, with altitude adding effort above ten thousand feet.”

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Recorded for this trailhead

Mono Pass
0:00 / 0:26
“Mono Pass Trailhead is coming up, for a high-country walk from wet meadows to the drier Sierra crest. Allow five to seven hours for the eight-mile round trip, with altitude adding effort above ten thousand feet.”

Plays as you drive up to this trailhead in the Parkwolf Yosemite Tour Guide.

More stories near here in the app

  • A Nest Beside the Waterfall
  • Tioga Pass and Gaylor Lakes
  • Lower Gaylor Lake Trailhead
  • Why the Sierra Has a Dry Side
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  • Wildlife heatmapsfor Black Bear, Peregrine Falcon, Mule Deer, and 13 more
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Trail guide

Hiking Spillway Lake Trail

What you’re walkingSpillway Lake Trail is an 8-mile out-and-back from Mono Pass Trailhead, climbing gradually…

Spillway Lake Trail is an 8-mile out-and-back from Mono Pass Trailhead, climbing gradually through lodgepole pines and wet meadows to a high-country lake. It gains about 800 feet, from roughly 9,700 feet at the trailhead to 10,480 feet at the lake. Allow about five hours for the distance, altitude and creek crossings. Go for a long, steady walk with an alpine lake as the payoff; this is a half-day hike, not a quick detour.

Take the lake forkFor about 2.3 miles, the route shares the historic Mono Pass trail.

For about 2.3 miles, the route shares the historic Mono Pass trail. At the signed fork, turn right for Spillway Lake; the branch takes another 1.7 miles. Continuing straight climbs more steeply toward Mono Pass, a different route. The shared approach alternates between lodgepole woods and wet meadows, with rocky stretches along the way. Red mountain heather blooms beside the trail in midsummer.

The last meadow and the lakeSeveral creeks cross without bridges.

Several creeks cross without bridges. During early snowmelt, water can be high, cold and swift; early summer can also mean muddy tread. The final meadow can be swampy, and the shoreline is marshy where small streams feed the lake. Reaching the western shore requires another inlet or outlet crossing, so don’t count on walking around the whole lake.

Kuna Peak and Kuna Crest rise above the lake’s south and west sides, both topping 12,000 feet. From an opening on the eastern shore, the water and high ridges make the clearest view together.

Wildlife

Wildlife in Yosemite

All Yosemite wildlife maps

Sighting maps show where each species has been reported across Yosemite. Wildlife moves, so no sighting is guaranteed.

Keep exploring

Near Spillway Lake Trail

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Parkwolf’s Yosemite ranking

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