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Washington

Thornton Lakes Trail

5.0 mi

Distance

5,342 ft

Gain

3h 31m

Time

No verdict for this trail

We won't guess. Here is exactly what we do and don't know.

What we do know

  • Inside North Cascades National Park

    2 managing-area boundaries mapped — agency alerts for them feed this page automatically.

    Boundary data

What's missing

  • No access route mapped

    We don't yet know which road reaches this trailhead, so we can't tell you if it's gated.

Nobody's filed a report here yet — be the first.

Why you'll love it

Big climb
Out & back

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Thornton Lakes Trail

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Elevation & route

Distance
5.0 mi
Elevation gain
5,342 ft
Elevation loss
5,342 ft
More about this trail ↓

Photos

Directions & GPX

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Permits & access

Managing agency
National Park Service

About this trail

Thornton Lakes Trail is a 5.05-mile out-and-back hike in Washington managed by the National Park Service. The trail gains 3,654 feet of elevation.

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Guided trips nearby

Local operatorsoffering guided trips. You book directly with them — Roamze doesn’t take a cut.

Triangle Recreation Camp

Hiking business nearby (~44 mi away) — hasn't claimed their Roamze page yet

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WHATCOM MEADOWS

Hiking business nearby (~45 mi away) — hasn't claimed their Roamze page yet

View operator