If you've already worked your way through the Massachusetts 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 22,346 mapped Massachusetts 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.
Massachusetts ranges from Cape Cod's flat dunes to the Berkshires' rolling 3,400-ft summits in the west — the Mid State Trail crosses the interior. The full Massachusetts AT in a long weekend or a Bay Circuit through-hike are the state's tougher objectives. Ticks (Lyme is endemic), occasional black bear encounters in the Berkshires, and ice on exposed summits in shoulder seasons.
Our rankings here are data-driven — pulled from the 22,346 mapped entries OutsideAtlas tracks in Massachusetts — 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. Bittersweet Trail
Bittersweet Trail sits near Barrington in Bristol County and is rated expert — our pick for the toughest trail on the list. 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 Bittersweet Trail trail page →Map, elevation profile, current weather, and OSM source.#2. Caveman
Caveman sits near Essex in Essex County and is rated expert — the #2 entry in a roster of hikes you don't take lightly. Expect ground 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 Caveman trail page →Map, elevation profile, current weather, and OSM source.#3. Coon Hollow Path
Coon Hollow Path sits near Hyde Park in Norfolk 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 Coon Hollow Path trail page →Map, elevation profile, current weather, and OSM source.#4. Dark Tower
Dark Tower sits near Manchester in Essex 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 Massachusetts, 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 Dark Tower trail page →Map, elevation profile, current weather, and OSM source.#5. Dark Tower
Dark Tower sits near Manchester in Essex 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 Dark Tower trail page →Map, elevation profile, current weather, and OSM source.#6. Dark Tower
Dark Tower sits near Manchester in Essex 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 Dark Tower trail page →Map, elevation profile, current weather, and OSM source.#7. Dark Tower
Dark Tower sits near Manchester in Essex County and is rated expert — the #7 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 Dark Tower trail page →Map, elevation profile, current weather, and OSM source.#8. Haircut
Haircut sits near Pawcatuck in New London County and is rated expert — the #8 entry in a roster of hikes you don't take lightly. Expect ground 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 Haircut trail page →Map, elevation profile, current weather, and OSM source.#9. Knife Edge Trail
Knife Edge Trail sits near Sturbridge in Worcester County and is rated expert — the #9 entry in a roster of hikes you don't take lightly. Expect earth surface on a expert-only grade. Compared to similar trails in Massachusetts, 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 Knife Edge Trail trail page →Map, elevation profile, current weather, and OSM source.#10. Lower Fungo
Lower Fungo sits near Prides Crossing in Essex 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 Lower Fungo trail page →Map, elevation profile, current weather, and OSM source.Planning your Massachusetts trip
A few pieces of context are worth keeping in mind specifically for Massachusetts. May-October for highland routes; coastal year-round; fall foliage in the Berkshires is exceptional. Ticks (Lyme is endemic), occasional black bear encounters in the Berkshires, and ice on exposed summits in shoulder seasons.
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 Massachusetts hiking guides
If you found this useful, the rest of our Massachusetts coverage continues below.
- Top 10 longest trails in Massachusetts — Multi-day routes and through-hikes ranked by distance.
- Steepest trails in Massachusetts — Hikes with the most elevation gain in the state.
- Best beginner hikes in Massachusetts — Easy, well-marked trails for first-time hikers.
- Best national parks in Massachusetts — Federal parks and recreation areas ranked.
- Best waterfall hikes in Massachusetts — Trails leading to named falls, ranked by accessibility.
- Best dog-friendly hikes in Massachusetts — Where leashed dogs are explicitly welcome.
- Best family hikes in Massachusetts — 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 Massachusetts 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.
