Alewife Brook Greenway Loop
Alewife Brook Greenway Loop
3.2
(25)
57
hikers
01:27
5.74km
10m
Hiking
The Alewife Brook Greenway Loop offers a delightful journey through a sprawling urban forest, providing a peaceful retreat right within Cambridge, Arlington, and Somerville. You'll wander along a mix of paved paths, stone-dust trails, and raised boardwalks that traverse wetlands, where lily pads often dot the water. Following the gentle curves of the Alewife Brook and the Little River, this route delivers a surprising amount of natural beauty, especially when the native asters and Virginia Creeper burst into color in autumn.
This easy 3.6-mile (5.7 km) hike, with a minimal 40 feet (12 metres) of elevation gain, typically takes around 1 hour and 27 minutes to complete. It's highly accessible via public transportation, with the MBTA Red Line's Alewife Station providing direct access and parking. The trail is a multi-use path, so expect to share it with cyclists and dog walkers, making it a lively community space.
More than just a trail, the Alewife Brook Greenway Loop is a vital wildlife corridor, offering a habitat for numerous indigenous and migratory birds, including osprey and great blue heron. Its constructed wetlands near Alewife Station are among New England's largest, playing a crucial role in stormwater management while providing scenic trails. The route also serves as a key connector to other regional paths like the Minuteman Bikeway and the Mystic River Paths.
Last updated: June 9, 2026
Waypoints
Start point
Train Station
Get Directions
280 m
Highlight • Forest
Tip by
2.15 km
Highlight (Segment) • Trail
Tip by
5.74 km
End point
Train Station
Way Types & Surfaces
Way Types
5.42 km
178 m
130 m
Surfaces
2.61 km
1.31 km
763 m
688 m
296 m
< 100 m
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Elevation
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Weather
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Today
Sunday 5 July
29°C
20°C
15 %
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Max wind speed: 15.0 km/h
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This route was planned by komoot.
The Alewife Brook Greenway Loop is an easy hike that generally takes about 1 hour and 27 minutes to complete. This duration is for hiking and can vary depending on your pace and how often you stop to enjoy the scenery.
The trail features a varied and generally flat terrain, making it accessible for many. You'll encounter a mix of paved sections, stone-dust paths, and raised boardwalks that bridge low wetlands or rise to meet major streets. Some parts of the path run along the cement-lined sides of Alewife Brook.
Yes, this loop is considered an easy trail with flat, mixed surfaces, making it very suitable for families. Its accessibility and varied scenery, including wetlands and urban forest, offer an enjoyable experience for all ages.
The Alewife Brook Greenway Loop passes through the Alewife Brook Reservation, a sprawling urban forest. You can spot various bird species, including osprey, great blue heron, and woodcock. The wetlands are filled with lily pads and other water plants, and in autumn, native plants like asters and Virginia Creeper add vibrant color. The reservation is also an important habitat for indigenous and migratory birds, and its ponds serve as spawning grounds for anadromous herring.
Yes, the Alewife Brook Greenway is a significant multi-use path that connects to several other regional trails. These include the Minuteman Bikeway, the Fitchburg Cutoff Path (part of the Mass Central Rail Trail), and Alewife Linear Park.
The trail is enjoyable year-round, but autumn is particularly beautiful when native plants like asters and Virginia Creeper display vibrant colors. Spring and summer offer lush greenery and active wildlife, while winter can provide a peaceful, snowy landscape, though conditions may vary.
Yes, the Alewife Brook Greenway Loop is generally dog-friendly. However, it's always best to keep your dog on a leash and practice responsible pet ownership by cleaning up after them to ensure a pleasant experience for all users.
No, there are typically no permits or entrance fees required to access the Alewife Brook Reservation or to hike the Alewife Brook Greenway Loop. It is a publicly accessible urban park.
While specific parking lots are not detailed, the trail is located in an urban area. You can often find parking in designated areas near the Alewife Brook Reservation or along adjacent streets. Public transportation options are also available to reach the vicinity of the trail.
Given its easy difficulty and mixed terrain, comfortable walking shoes are recommended. Depending on the weather, bring water, sun protection, and perhaps a light jacket. If you plan to observe wildlife, binoculars could be a good addition. As it's a multi-use path, be mindful of bikers and runners.
Beyond the natural beauty of the wetlands and urban forest, the trail features a storm water management wetland constructed in 2013. This area includes an amphitheater, interpretive signage, overlooks, and additional boardwalks, linking different sections of the bike paths and offering educational insights into the local ecosystem.
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