Thunder Mountain Lakes Trail
Strenuous · Out-and-back · 11.6 mi round trip · 4,221 ft gain · 5–7¼ hr
Alpine lakeBig viewsRiver or creekRidge or passCampsites
Parkingnot reported today
A long, demanding day; experienced hikers in good shape.
No hiker reports in the last 3 days. Be the first to report here
At this trail
Dogs allowed Northwest Forest Pass
Pack it out.
Official pageForest Service › record checked 2026-10-06
RestrictionsWilderness regulations apply within Alpine Lakes Wilderness.
PermitsDay hikes: none. Overnight: wilderness permit.
AreaSkykomish Ranger District ›
Stevens Pass and US-2, Mt. Baker-Snoqualmie National Forest U.S. Forest Service
Stevens Pass and US-2, Mt. Baker-Snoqualmie National Forest U.S. Forest Service
Officialconditions › · roads › · fees ›
Rules, passes and closures change. Check the official Forest Service site before you go.
Getting there
Starts at Surprise Creek Trailhead · 2 other trails start here
Navigate to the trailhead: Google Maps · Apple Maps · coordinates 47.70678, -121.15922
Right now
TodayPM51°
TonightPM42°
ThuAM57°
ThuPM43°
FriAM60°
FriPM43°90%
SatAM46°90%
SatPM33°11%
Sunny, wind 3 mph · Full forecast ›
Daylight7:23 am 6:17 pm
Air qualityAQI 6 Good
WildfireKing fire, 27 km away, 3,427 acres, 36% contained
Snow0″ snow at Stevens Pass (3,940 ft, 6.6 km away)
Typical year: normally snow-free now · usually melted out by about Jun 6 · typical peak Mar 30
Typical year: normally snow-free now · usually melted out by about Jun 6 · typical peak Mar 30
Snow levelabout 7,700 ft now · 6,000–9,100 ft over the next three days
PassStevens Pass US 2 7 km
Eastbound: No restrictions · Westbound: No restrictions · pass report ›
Eastbound: No restrictions · Westbound: No restrictions · pass report ›
Cameras
US 2 at MP 61.9: Old Faithful Avalanche Zone · 3 km › 
US 2 at MP 63: Big Windy · 5 km ›
No reports in the last 3 days.
All conditions and reports at Surprise Creek Trailhead
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