Expert
Washington · United States
- Distance
- 201 km / 125 mi
- Elevation gain
- 4,417 m
- Typical duration
- 54 hr
- Mountain
- Long-distance path
Glacier Peak Loop
ExpertWashington · United States
- Distance
- 132 km (82.0 mi)
- Elevation gain
- 2,905 m (9,531 ft)
- Estimated time
- 35 hr
- Difficulty
- Expert
- Route type
- Loop
- Highest point
- Not recorded
About Glacier Peak Loop
Glacier Peak Loop is a 132 km hiking route in Washington, United States. It climbs roughly 2,905 m (9,531 ft) along the way. Most people take around 6 days at a comfortable pace, plus stops. Only take this on with mountain experience, solid navigation and a realistic view of your own pace.
Most people walk it in stages, using the waymarking and accommodation built up along the corridor. Glacial terrain changes from year to year, so local information matters more than usual. The higher sections open out completely, with ridgelines stacking into the distance on clear days.
It is a 132 km loop, so you finish where you started and never repeat a section. Much of the surface is sealed, which makes for fast walking and easy going in the wet. It is not consistently waymarked, so carry a map or a downloaded track rather than relying on signs.
It walks well across three seasons, with spring and autumn offering the best combination of light, temperature and quiet paths.
In short, Glacier Peak Loop suits experienced mountain walkers who are comfortable with exposure, navigation and long descents. Dog access is not formally recorded here, so check locally before bringing one.
Plan around this route’s details
- Start, finish and return
- This route is recorded as a 132 km loop. Confirm a permitted access point and include the approach from parking or public transport in your plan.
- Climbing in context
- The recorded ascent averages approximately 22 m of climbing per kilometre across the whole route. This is climbing density, not trail gradient: climbs and flatter sections may be unevenly distributed.
- What needs a separate check
- This record does not establish dog access, wheelchair access. Check any of these that affect your group. Current closures, access arrangements and transport are not verified by the route line.
Route map
Expert132 km2,905 m
Numbered marks every 25 km
Route line from OpenStreetMap contributors, ODbL. View the source relation
Make it fit your day
Your walking-time scenario
Adjust the example pace and allowances to explore your own plan. This calculator uses your inputs, so it may differ from the directory’s headline estimate.
Calculated walking time including your allowances
38 hr 21 min
1980 min for distance + 291 min for ascent + 30 min allowance.
This is an aggregate calculation for a long outing. It does not plan overnight stages, accommodation or recovery.
Formula: distance ÷ pace × 60 + ascent ÷ 100 × climbing allowance + stops. Travel to and from the route is additional. Terrain, descent, weather and navigation are not modelled. These results do not establish route suitability. Read the time-planning guide.
Recorded route measurements
The loop is usually walked clockwise from the main trailhead. The first third does most of the climbing, so settle into a slow rhythm early rather than trying to hold a flat-ground pace. The upper section is where the route earns its reputation, and it is also where weather changes fastest. The return leg is the reverse of the outward journey, which makes it easy to judge remaining time.
Highlights
- Mountain
- Glacier
- Long-distance path
- Circular route, no backtracking
- Part of a long-distance path
- Over 1,000 m (3,281 ft) of ascent
Know before you go
- Season field
- April to October
- Waymarked
- Not recorded as waymarked
- Surface
- unpaved
- Dogs
- Not recorded, check locally
- Wheelchair access
- Not recorded
- Entrance fee
- Not recorded
- Camping
- Not recorded
- Drinking water
- Not recorded as available
- Toilets
- Not recorded as available
- Mobile coverage
- Not verified
- Parking
- Park at the trailhead, arrive early in high season
- Emergency
- 112 in Europe, 911 in North America
How this trail scores
Computed from distance, ascent, terrain features, surface and access data.
- Scenery
- 74/100
- Adventure
- 100/100
- Difficulty
- 100/100
- Accessibility
- 13/100
- Family
- 0/100
- Dogs
- 17/100
Terrain features, relief and photographic interest
Distance, ascent and how wild the ground is
Effort index from distance and climbing
Surface, gradient and ease of reaching it
Suitability for children who already walk
Access rules, terrain and water along the way
Tips from the trail
- Start at first light. A long day is far more pleasant when you are not racing the sunset on the descent.
- Aim for april to october for the most reliable conditions.
- Download the track to your phone before you leave. Signal is not guaranteed.
- Break the route into stages and decide your turnaround time before you set off.
- Leave nothing behind, including fruit peel, and stay on the marked line to protect the ground either side.
Warnings
- This route is long and sustained. Turn back early rather than late if the weather closes in.
- Glacier terrain is unstable and changes year to year. Do not step onto ice without the right equipment and local advice.
- Outside the main season expect snow, ice or closed access on the higher sections.
Safety
Emergency services in United States are reached on 911. Tell someone your route and expected finish time before you set off, particularly if you are walking alone. Mobile coverage is generally usable along this route, but do not rely on it as your only plan. If the weather deteriorates, descending the way you came is almost always the safer option.
What to bring
- Comfortable, broken-in hiking shoes or boots
- Weatherproof jacket
- At least 1.5 litres of water
- Trekking poles for the descent
- Offline map and compass
- Head torch and spare battery
- Extra warm layer
- Sun hat, sunglasses and high-factor sun cream
- Microspikes if you are walking at the edges of the season
Photography
Shoot the first hour after sunrise from the higher ground: the low angle picks out every ridge and the valleys still hold mist. Because it is a loop, the light changes direction as you go, so save some memory for the back half. A wide lens captures the scale, but a short telephoto is what turns a good view into a photograph.
Frequently asked questions
Reviews
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Prepare for this walk
All planning articles →Understanding the map
Download a GPX route and check it before leaving
Take a route into your navigation app, check the imported line and understand what a GPX download does and does not contain.
Read article →Planning your day
Loops, out-and-backs and point-to-point return plans
Work out what a route's shape means for distance, endpoints and getting back after the walk.
Read article →Sources and confidence
What open route data can tell you—and what to verify locally
Distinguish source records, calculated estimates and missing details before relying on a route page.
Read article →Trails near Glacier Peak Loop
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