Mount Adams Highline Trail
Strenuous · Out-and-back · 23.4 mi round trip · 3,547 ft gain · 8¼–11¾ hr
Alpine lakeBig views
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
Pack it out.
Official pageForest Service › record checked 2026-10-06
FeeNo fee
RestrictionsWilderness Regulations apply within Mt Adams Wilderness.
PermitsDay hikes: none. Overnight: wilderness permit.
AreaMount St. Helens and the Gifford Pinchot National Forest › U.S. Forest Service
Officialconditions › · roads › · fees › · permits ›
Rules, passes and closures change. Check the official Forest Service site before you go.
Getting there
Starts at Potato Hill Trailhead · 1 other trail starts here
Navigate to the trailhead: Google Maps · Apple Maps · coordinates 46.32550, -121.50597
Right now
Fire RestrictionsThere are no current fire restrictions on the Gifford Pinchot National Forest. Even with lower fire risk please continue to practice safe fire habits: never leave a campfire unattended and make sure it is completely…Forest Service · Sep 18 · details ›
TonightPM30°3%
TueAM50°6%
TuePM36°3%
WedAM54°2%
WedPM37°
ThuAM56°
ThuPM38°
FriAM61°
Mostly Clear, wind 2 mph · Full forecast ›
Daylight7:22 am 6:21 pm
Air qualityAQI 9 Good
Snow0″ snow at Potato Hill (4,480 ft, 2.8 km away)
Typical year: normally snow-free now · usually melted out by about Jun 2 · typical peak Apr 3
Typical year: normally snow-free now · usually melted out by about Jun 2 · typical peak Apr 3
Snow levelabout 5,200 ft now · 4,900–9,600 ft over the next three days
PassWhite Pass US 12 36 km
Eastbound: No restrictions · Westbound: No restrictions · 50°F · pass report ›
Eastbound: No restrictions · Westbound: No restrictions · 50°F · pass report ›
No reports in the last 3 days.
All conditions and reports at Potato Hill Trailhead
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