Colorado · Hiking · Eagles Nest Wilderness

Lost Lake Trail

7.2 mi
round trip
929 ft
climb
10,168 ft
high point
Out and back
route
Jun–Jul
best months

Is Lost Lake Trail open right now?

Alert in the area

The Forest Service lists 6 alerts for White River National Forest.

As of · Source: USFS · White River National Forest. Agencies don't list every closure — check before you go.

Lost Lake Trail is a 7.2-mile out-and-back hike in Colorado's Eagles Nest Wilderness, part of the Dillon Ranger District of the White River National Forest. The Forest Service manages the land, and the trail is rated hard, with a total elevation gain of 929 feet from the low point of 9,225 feet to the high of 10,168 feet. Summer is the most comfortable time to go. Typical averages from a nearby weather station in Dillon show July highs around 75°F and lows near 38°F, while temperatures on this trail run cooler than at the station. The trail is on natural surface, and horses are allowed. Bikes are not. Nearby, Brush Creek and South Rim Black Creek are both within about a mile and a half. Lower/Upper Slate Lakes #65 and Prairie Point Campground are each about 4 miles away.

Go with a guide

  • Best time to go · Jun–Jul

    Best time to visit Lost Lake Trail

    Best months: June–July. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

    1. Jan

      31° / 1°

      12 wet

    2. Feb

      33° / 4°

      11 wet

    3. Mar

      41° / 10°

      11 wet

    4. Apr

      47° / 18°

      11 wet

    5. May

      58° / 26°

      10 wet

    6. Jun

      69° / 33°

      9 wet

    7. Jul

      75° / 38°

      12 wet

    8. Aug

      73° / 37°

      13 wet

    9. Sep

      66° / 30°

      10 wet

    10. Oct

      54° / 21°

      8 wet

    11. Nov

      41° / 11°

      9 wet

    12. Dec

      32° / 3°

      11 wet

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Dillon 1 E, CO, 15.3 mi away at 9,065 ft. The station sits about 1,100 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

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