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Yukon trails · Mary Lake-Cowley Lakes Trail

Mary Lake-Cowley Lakes Trail

A 3.8-mile out-and-back in Yukon, with 187 ft of climbing. Reaches Swamp Lake.

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Length
3.8 mi
Elevation gain
187 ft
Difficulty
Easy
Max grade
12%
Steepest mile
+150 ft
Tread at ≥10% grade
0.1 mi
Shape
out-and-back

Elevation profile

2,491 – 2,678 ft123

Most of the climbing sits in the first third — 85% of the ascent, between mile 0.0 and mile 1.3. It gives back about 147 ft along the way, so it rolls rather than climbing steadily.

3-D terrain

3-D terrain view of Mary Lake-Cowley Lakes Trail

NRCAN MRDEM 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 7:54 a.m., the sun rises at 8:37 a.m. and sets at 6:52 p.m., and the last usable light fades about 7:35 p.m. (MST) — 10 h 15 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 7.6-mile round trip takes roughly 3 h 00 min, so leaving the trailhead at sunrise puts you back around 11:37 a.m. — 7 h 15 min before sunset.

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