If you've already worked your way through the New Mexico 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 6,485 mapped New Mexico 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.
New Mexico stacks four major ecosystems vertically — Chihuahuan Desert, piñon-juniper woodland, ponderosa pine, and alpine tundra atop the Sangre de Cristo and San Juan Mountains. The full CDT-NM, the Gila Wilderness loop, and a winter Wheeler Peak attempt are the state's defining tests. Lightning above treeline, dehydration at low elevation, and flash floods in desert arroyos are the state's leading hazards.
Our rankings here are data-driven — pulled from the 6,485 mapped entries OutsideAtlas tracks in New Mexico — 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. Chunk Suey Descent
Chunk Suey Descent sits near San Ysidro in Sandoval County and is rated expert — our pick for the toughest trail on the list. Expect dirt 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 Chunk Suey Descent trail page →Map, elevation profile, current weather, and OSM source.#2. El Capitan Trail
El Capitan Trail sits near Dell City in Culberson County and is rated expert — the #2 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 El Capitan Trail trail page →Map, elevation profile, current weather, and OSM source.#3. El Capitan Trail
El Capitan Trail sits near Dell City in Culberson County and is rated expert — the #3 entry in a roster of hikes you don't take lightly. Expect unpaved surface on a expert-only grade. 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. 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 El Capitan Trail trail page →Map, elevation profile, current weather, and OSM source.#4. Granite Peak Trail #150
Granite Peak Trail #150 sits near Gila in Grant County and is rated expert — the #4 entry in a roster of hikes you don't take lightly. Tagged expert in OpenStreetMap. Compared to similar trails in New Mexico, 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 Granite Peak Trail #150 trail page →Map, elevation profile, current weather, and OSM source.#5. GWT - 150 - Granite Peak Trail
GWT - 150 - Granite Peak Trail sits near Gila in Grant County and is rated expert — the #5 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 GWT - 150 - Granite Peak Trail trail page →Map, elevation profile, current weather, and OSM source.#6. Knife Edge Trail
Knife Edge Trail sits near Los Alamos in Los Alamos County and is rated expert — the #6 entry in a roster of hikes you don't take lightly. Tagged expert in OpenStreetMap. 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. 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 trail page →Map, elevation profile, current weather, and OSM source.#7. Knife Edge Trail
Knife Edge Trail sits near Los Alamos in Los Alamos County and is rated expert — the #7 entry in a roster of hikes you don't take lightly. Expect dirt 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. 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 trail page →Map, elevation profile, current weather, and OSM source.#8. Picuris Trail
Picuris Trail sits near Carson in Taos County and is rated expert — the #8 entry in a roster of hikes you don't take lightly. Expect dirt surface on a expert-only grade. 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. 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 Picuris Trail trail page →Map, elevation profile, current weather, and OSM source.#9. Pothole Canyon
Pothole Canyon sits near San Ysidro in Sandoval County and is rated expert — the #9 entry in a roster of hikes you don't take lightly. Expect ground surface on a expert-only grade. Compared to similar trails in New Mexico, 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 Pothole Canyon trail page →Map, elevation profile, current weather, and OSM source.#10. Scramble Trail
Scramble Trail sits near Cochiti Lake in Sandoval 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 Scramble Trail trail page →Map, elevation profile, current weather, and OSM source.Planning your New Mexico trip
A few pieces of context are worth keeping in mind specifically for New Mexico. Spring and fall are prime; summer monsoon brings reliable afternoon storms; high country (Wheeler, Truchas) opens mid-June through October. Lightning above treeline, dehydration at low elevation, and flash floods in desert arroyos are the state's leading hazards.
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 New Mexico hiking guides
If you found this useful, the rest of our New Mexico coverage continues below.
- Top 10 longest trails in New Mexico — Multi-day routes and through-hikes ranked by distance.
- Steepest trails in New Mexico — Hikes with the most elevation gain in the state.
- Best beginner hikes in New Mexico — Easy, well-marked trails for first-time hikers.
- Best national parks in New Mexico — Federal parks and recreation areas ranked.
- Best waterfall hikes in New Mexico — Trails leading to named falls, ranked by accessibility.
- Best dog-friendly hikes in New Mexico — Where leashed dogs are explicitly welcome.
- Best family hikes in New Mexico — 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 New Mexico 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.
