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Washington trails · Hidden Lakes

Hidden Lakes

A 21.6-mile point-to-point in Washington, with 1,842 ft of climbing. Reaches Eightmile Pass and other lake/pass destinations. Managed by the U.S. Forest Service.

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Length
21.6 mi
Elevation gain
1,842 ft
Difficulty
Expert
Max grade
60%
Steepest mile
+849 ft
Tread at ≥10% grade
5.5 mi
Shape
point-to-point
Managed by
U.S. Forest Service

Elevation profile

3,962 – 5,804 ft13579111315171921

The climbing leans toward the middle third: 45% of the ascent falls between mile 7.2 and mile 14.4. It gives back about 2,998 ft along the way, so it rolls rather than climbing steadily.

Reaches

Heads up

Stream ford: expect at least one unbridged crossing.

Getting there

BILLYGOAT - UPPER — parking nearby, restroom, water. 48.78432, -120.31781 · directions

Daylight at the trailhead

On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 5:43 a.m., the sun rises at 6:16 a.m. and sets at 7:45 p.m., and the last usable light fades about 8:18 p.m. (PDT) — 13 h 29 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 21.6-mile route takes roughly 8 h 55 min, so leaving the trailhead at sunrise puts you back around 3:11 p.m. — 4 h 34 min before sunset.

Loop options

Nearby trails