Sudbury Reservoir – Callahan State Park (entrance) loop from Sawink Farm Reservation

Sudbury Reservoir – Callahan State Park (entrance) loop from Sawink Farm Reservation

Easy

2.7

(9)

riders

Sudbury Reservoir – Callahan State Park (entrance) loop from Sawink Farm Reservation

01:04

25.3km

170m

Road cycling

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride. The starting point of the route is right next to a parking lot.

Last updated: August 7, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Sudbury Dam Historic District

Waypoints

Start point

Parking

Get Directions

2.68 km

View of Wachusett Reservoir

Highlight • Lake

It is not always about following the tracks of a train, a natural trail or the route of a famous race. Sometimes, you find yourself following the course of underground …

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6.71 km

Sudbury Reservoir

Highlight • Lake

The Sudbury Reservoir is about 5,000 acres in size and is the emergency backup water supply for Boston. It has numerous large brooks running into it, numerous islands, and is …

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12.5 km

Callahan State Park (entrance)

Highlight • Rest Area

The Red Tail Trail in front of you is one of the entrances to Callahan State Park. This Park offers you magnificent paths and the nature of New England in all its magnificence.

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13.7 km

Parmenter Street

Highlight (Segment) • Cycleway

Parmeter Street is a quiet street that borders Pine Hill and the surrounding area on the eastern side of the Sudbury Reservoir.

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18.2 km

View of Marlborough Brook and Sudbury Reservoir

Highlight • Viewpoint

The views out over both arms of Marlborough Brook here are super nice as you go over the bridge. The brook runs into, and is really a part of Sudbury …

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25.3 km

End point

Parking

Way Types & Surfaces

Way Types

23.4 km

1.52 km

427 m

Surfaces

24.0 km

1.22 km