2.6
(11)
44
hikers
01:49
6.84km
70m
Hiking
Hike the 4.2-mile Rock Circuit Trail loop in Middlesex Fells Reservation for rocky terrain, forest views, and Boston skyline vistas.
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Middlesex Fells Reservation
Waypoints
Start point
Parking
Get Directions
3.28 km
Highlight • Viewpoint
Tip by
4.06 km
Highlight • Viewpoint
Tip by
5.05 km
Highlight • Viewpoint
Tip by
6.84 km
End point
Parking
Way Types & Surfaces
Way Types
6.47 km
271 m
< 100 m
Surfaces
3.39 km
3.21 km
< 100 m
< 100 m
< 100 m
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Elevation
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Weather
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Today
Wednesday 6 May
23°C
14°C
72 %
Additional weather tips
Max wind speed: 25.0 km/h
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This route was planned by komoot.
True to its name, the Rock Circuit Trail is characterized by its rocky nature, featuring frequent ascents and descents over various rock formations and numerous rock scrambles. You'll encounter continuous up-and-down elevation changes, with particularly rocky and scrambling sections in the southern and eastern parts of the loop. Some sections include steep, almost sheer rock faces, though detours are often available.
The full loop is approximately 4.2 to 4.7 miles long and can take over an hour to complete, depending on your pace and how much time you spend enjoying the views and navigating the rocky sections.
The trail offers beautiful views throughout, including glimpses of the Middlesex Fells Reservoir and expansive city views of Boston to the south. Notable viewpoints include Eagle Rock, Pinnacle Rock, and the View of Boston Skyline from Boojum Rock. You might also spot an old MIT observatory built in 1899 and other significant rock formations like Melrose Rock.
The trail is particularly stunning during the fall when the leaves change colors, offering vibrant scenery. However, it can be enjoyed year-round, with each season presenting its own unique beauty. Be mindful of icy conditions in winter, which can make the rocky sections more challenging.
Yes, dogs are generally allowed on the trails within Middlesex Fells Reservation. However, it's always best to check the specific regulations for the reservation regarding leash requirements to ensure a pleasant experience for everyone.
The Rock Circuit Trail is located within the Middlesex Fells Reservation. There are several parking areas around the reservation that provide access to various trailheads. Specific parking lots can be found near Woodland Road or Fellsway East, which are common starting points for sections of the trail.
No, there are typically no permits or entrance fees required to access the trails within the Middlesex Fells Reservation, including the Rock Circuit Trail. It is freely accessible to the public.
While the trail is generally well-blazed with white markers, it intersects with numerous other paths within the Middlesex Fells. Bringing a map or using a hiking app like komoot is highly recommended to avoid getting lost and to help you stay on the intended route.
Yes, the Rock Circuit Trail intersects with many other paths within the Middlesex Fells Reservation. You'll find it crossing or running concurrently with sections of the Cross Fells Trail, Rock Circuit Connector, Fells Path, and Woodland Path, among others.
The trail is known for its constant undulations and rock scrambles, especially in the southern and eastern parts. While some sections feature steep, almost sheer rock faces, detours are often available for the most technical scrambles. Wearing sturdy hiking boots with good ankle support and bringing trekking poles can greatly assist with stability on the uneven, rocky surfaces.
Due to its rocky and challenging terrain, including frequent scrambles and steep sections, the full Rock Circuit Trail might be strenuous for very young children or those unaccustomed to rugged hiking. However, families with older, experienced children who enjoy a challenge may find it rewarding. Shorter, less technical sections of the Middlesex Fells Reservation might be more suitable for beginners or younger families.
Our autumn hike today went over different rocks. The hike was mostly rocky. We visited a cascading waterfall. The waterfall currently has little water. From Boojum Rock we had a beautiful view of the Boston skyline. The hike requires sure-footedness and sturdy shoes.