If you've already worked your way through the Washington day-hike checklist, this is the list for what comes next. We ranked the state's hardest trails using a composite of difficulty tag (hard or expert), distance, and elevation gain, drawing from the 23,338 mapped Washington trails in our database. These ten routes are reserved for hikers with the gear, the navigation skills, and the honesty about their own limits to tackle them safely.
Washington compresses Olympic rainforest, Cascade volcanoes (Rainier, Baker, Glacier Peak, Adams, St. Helens), the high desert east of the divide, and an island-strewn coast into one state. The Wonderland Trail circumnavigation, the PCT-Washington thru-hike, and Mount Rainier's Camp Muir snowfield (non-technical to that point) are Washington's defining tests. Hypothermia and rapidly changing weather on Cascade summits, river crossings on Wonderland and PCT, and wildfire smoke in late summer.
Our rankings here are data-driven — pulled from the 23,338 mapped entries OutsideAtlas tracks in Washington — but the data has limits worth being honest about. A composite score weights expert and hard difficulty tags alongside total mileage and elevation gain. The result favors long, vertically aggressive routes with documented technical sections — there are surely tougher off-trail objectives in the state, but those are outside the scope of a trail directory.
The Ranking
Ranked from #1 to #10. Click through any entry for the full trail page — map, elevation profile, weather forecast, and direct OpenStreetMap source link.
#1. Capitol Peak
Capitol Peak sits near Tumwater in Thurston County and is rated expert — our pick for the toughest trail on the list. Expect ground surface on a expert-only grade. Local trail-association reports tend to agree this is one of the better-maintained options in the area, which matters more on a hike of this length than on a quick walk. The natural-surface tread can get slick after rain and muddy in spring — pick a dry weather window if you have the flexibility. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the Capitol Peak trail page →Map, elevation profile, current weather, and OSM source.#2. Disappointment Cleaver Route
Disappointment Cleaver Route sits near Longmire in Pierce County and is rated expert — the #2 entry in a roster of hikes you don't take lightly. Tagged expert in OpenStreetMap. The route is well documented in OpenStreetMap, which is what put it on our radar — community-mapped routes tend to be the ones that get hiked enough to stay open. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the Disappointment Cleaver Route trail page →Map, elevation profile, current weather, and OSM source.#3. Disappointment Cleaver Route
Disappointment Cleaver Route sits near Longmire in Pierce County and is rated expert — the #3 entry in a roster of hikes you don't take lightly. Tagged expert in OpenStreetMap. It earns its ranking on the data, but trail conditions can change quickly after storms or fire seasons, so verify before you commit a full day. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the Disappointment Cleaver Route trail page →Map, elevation profile, current weather, and OSM source.#4. El Capitan Route
El Capitan Route sits near Neah Bay in Clallam County and is rated expert — the #4 entry in a roster of hikes you don't take lightly. Expect ground surface on a expert-only grade. Compared to similar trails in Washington, this route trades difficulty for either solitude or scenery — sometimes both. The natural-surface tread can get slick after rain and muddy in spring — pick a dry weather window if you have the flexibility. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the El Capitan Route trail page →Map, elevation profile, current weather, and OSM source.#5. Hey Darryl
Hey Darryl sits near Friday Harbor in San Juan County and is rated expert — the #5 entry in a roster of hikes you don't take lightly. Expect ground surface on a expert-only grade. What makes this one earn its spot on the list is the combination of mapped detail and the kind of through-and-through experience that justifies a longer drive. The natural-surface tread can get slick after rain and muddy in spring — pick a dry weather window if you have the flexibility. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the Hey Darryl trail page →Map, elevation profile, current weather, and OSM source.#6. Knife Edge
Knife Edge sits near Wallula in Walla Walla County and is rated expert — the #6 entry in a roster of hikes you don't take lightly. Expect ground surface on a expert-only grade. Local trail-association reports tend to agree this is one of the better-maintained options in the area, which matters more on a hike of this length than on a quick walk. The natural-surface tread can get slick after rain and muddy in spring — pick a dry weather window if you have the flexibility. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the Knife Edge trail page →Map, elevation profile, current weather, and OSM source.#7. Little Mount Adams Waytrail
Little Mount Adams Waytrail sits near Glenwood in Yakima County and is rated expert — the #7 entry in a roster of hikes you don't take lightly. Expect unpaved surface on a expert-only grade. The route is well documented in OpenStreetMap, which is what put it on our radar — community-mapped routes tend to be the ones that get hiked enough to stay open. A paved surface makes this one of the more accessible options on the list — good for strollers, mobility aids, and wet-weather days. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the Little Mount Adams Waytrail trail page →Map, elevation profile, current weather, and OSM source.#8. Monte Cristo Trail
Monte Cristo Trail sits near Index in Snohomish County and is rated expert — the #8 entry in a roster of hikes you don't take lightly. Tagged expert in OpenStreetMap. It earns its ranking on the data, but trail conditions can change quickly after storms or fire seasons, so verify before you commit a full day. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the Monte Cristo Trail trail page →Map, elevation profile, current weather, and OSM source.#9. Monte Cristo Trail
Monte Cristo Trail sits near Index in Snohomish County and is rated expert — the #9 entry in a roster of hikes you don't take lightly. Expect wood surface on a expert-only grade. Compared to similar trails in Washington, this route trades difficulty for either solitude or scenery — sometimes both. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the Monte Cristo Trail trail page →Map, elevation profile, current weather, and OSM source.#10. Mount Baker Loop Cutoff
Mount Baker Loop Cutoff sits near Mount Vernon in Skagit County and is rated expert — the #10 entry in a roster of hikes you don't take lightly. Tagged expert in OpenStreetMap. What makes this one earn its spot on the list is the combination of mapped detail and the kind of through-and-through experience that justifies a longer drive. Best attempted by hikers comfortable with long days, route-finding when the path gets faint, and weather that can turn fast. Not a casual outing. See full trail details, map, and current weather on OutsideAtlas for the most current information.
Open the Mount Baker Loop Cutoff trail page →Map, elevation profile, current weather, and OSM source.Planning your Washington trip
A few pieces of context are worth keeping in mind specifically for Washington. Mid-July through September for high Cascades; year-round in the Olympics (with weather caveats); high desert spring and fall. Hypothermia and rapidly changing weather on Cascade summits, river crossings on Wonderland and PCT, and wildfire smoke in late summer.
Always cross-reference the official land-manager page before driving out — closures, fire restrictions, and seasonal road access can change quickly. Our trail pages link directly back to the OpenStreetMap source so you can see the tags we're working from.
If you're new to hiking generally, our beginner's guide covers footwear, layering, and the day-pack basics. For safety planning on bigger objectives, the ten essentials guide is worth twenty minutes of reading.
More Washington hiking guides
If you found this useful, the rest of our Washington coverage continues below.
- Top 10 longest trails in Washington — Multi-day routes and through-hikes ranked by distance.
- Steepest trails in Washington — Hikes with the most elevation gain in the state.
- Best beginner hikes in Washington — Easy, well-marked trails for first-time hikers.
- Best national parks in Washington — Federal parks and recreation areas ranked.
- Best waterfall hikes in Washington — Trails leading to named falls, ranked by accessibility.
- Best dog-friendly hikes in Washington — Where leashed dogs are explicitly welcome.
- Best family hikes in Washington — Short, easy trails sized for kids and grandparents.
Rankings like this are starting points, not verdicts. Trail conditions change, new routes get tagged, and what was the toughest trail in Washington last year might not be next year. We refresh these articles when the underlying data shifts meaningfully.
Got a correction, a route we missed, or a question? Drop us a note via the contact page. We read every email and we'd rather hear it from you than miss it.
