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Washington trails · Northern Loop

Northern Loop

A 14.4-mile out-and-back in Washington, with 3,461 ft of climbing. Reaches Affi Falls and other lake/pass/waterfall destinations.

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Length
14.4 mi
Elevation gain
3,461 ft
Difficulty
Expert
Max grade
54%
Steepest mile
+1,267 ft
Tread at ≥10% grade
8.5 mi
Shape
out-and-back

Elevation profile

2,944 – 6,405 ft1234567891011121314

The climbing is spread fairly evenly along the route. It gives back about 3,215 ft along the way, so it rolls rather than climbing steadily.

3-D terrain

3-D terrain view of Northern Loop

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

Reaches

Heads up

Stream ford: expect at least one unbridged crossing.
Terrain graded T3 (SAC scale) — exposed or hands-on hiking reported on part of this route.

Daylight at the trailhead

On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 5:53 a.m., the sun rises at 6:25 a.m. and sets at 7:48 p.m., and the last usable light fades about 8:20 p.m. (PDT) — 13 h 24 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 28.9-mile round trip works out to roughly 14 h 09 min of walking — more than a single day of daylight here, so plan it as an overnight or hike it in sections.

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