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Wyoming trails · Simpson Lake

Simpson Lake

A 12.2-mile out-and-back in Wyoming, with 2,893 ft of climbing. Reaches Blanket Lakes and other lake destinations. Managed by USFS 021405.

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Length
12.2 mi
Elevation gain
2,893 ft
Difficulty
Expert
Max grade
37%
Steepest mile
+822 ft
Tread at ≥10% grade
3.6 mi
Shape
out-and-back
Surface
NATIVE MATERIAL
Bikes
no
Horses
yes
Managed by
USFS 021405

Elevation profile

7,353 – 10,231 ft123456789101112

Most of the climbing sits in the first third — 59% of the ascent, between mile 0.0 and mile 4.1.

3-D terrain

3-D terrain view of Simpson Lake

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5

Reaches

Daylight at the trailhead

On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 7:02 a.m., the sun rises at 7:31 a.m. and sets at 6:37 p.m., and the last usable light fades about 7:06 p.m. (MDT) — 11 h 06 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 24.5-mile round trip works out to roughly 11 h 58 min of walking — more than a single day of daylight here, so plan it as an overnight or hike it in sections.

Nearby trails