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1,243 ft
Distance
3 ft
Climb
-2 ft
Descent
00:03:18
Avg time
1 ft
Altitude change
316 ft
Altitude min
322 ft
Altitude max
321 ft
Altitude start
322 ft
Altitude end
0.1%
Grade
-1.3%
Grade max
3.3%
Grade min
236 ft
Distance climb
315 ft
Distance down
696 ft
Distance flat
00:03:18
Avg time
Charles River Trail Details
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Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
- Snowshoe
- Nordic Ski
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Riding AreaVietnam Trail Network
Milford, Massachusetts -
Difficulty Rating
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Local Popularity20 in Mountain Biking [+]
- 30 in E-Biking
- 50 in Trail Running
- 5 in Hiking
- 5 in Snowshoeing
- 5 in Nordic Skiing
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Global Ranking
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Trail TypeSingletrack
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Bike TypeXC
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DirectionBoth Directions
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Climb DifficultyBlue
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Physical RatingModerate
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Trail VisibilityAlways easy to follow
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Dogs AllowedYes
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eBike Allowed
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TTFs on TrailBridge, Drop, Jump, Log Ride, Rock Face, Rock Garden
This trail is often under water and is typically only usable during the winter when the beaver pond is frozen.
The Charles River Trail is one of the older trails in the Vietnam Network and is also one of the original ways to get from below up to the Nemba land above. It is a well defined trail and, while mostly smooth, it has a lot of rocky and rooty surfaces in places. There is a narrow bridge along the way. At the Southern end there is a punchy climb to take you up to Middle Sister which, further up, joins with the top end of Three Sisters and the Main Trail and the Nemba land. It is a hard climb. Down below is the famous Whaleback Rock which you must ride.
Access Info
The Charles River Trail can be accessed directly off the Whaleback Rock Trail or from the Holliston Highway, where it approaches the Rail Trail. From the South end it joins with Middle Sister and, further up, Three Sisters. Many people coming down from the Nemba Land enjoy bombing down this line. It is fast and quite techie with many rock features, jumps and logs along the way as well as many sessioning spots.
Local Trail Association
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Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 1 rides
- 9 miles average
6 Months
- 6 rides
- 8 miles avg distance
All
- 402 rides
- Last: Jul 5, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Charles River Trail Trail Reports
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Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
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- > 6 months
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Directions to charles-river-trail trailhead
(42.176770, -71.504260)
Photos
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Nearby Trails
- Crt Connector 26 ft
- Whaleback Rock 912 ft
- Jungle Escape Route 932 ft
- Nemba Trail 1,155 ft
- Chicken Run 1,263 ft
Vietnam Trail Network
- By WillieJacobsz
Trailforks SBP SWW & contributors - #63260 - 2,218 views
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Frequently Asked Questions About Charles River Trail
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Where is Charles River Trail located?
Charles River Trail is located in Vietnam Trail Network, Milford, Massachusetts, United States. It is part of the Vietnam Trail Network trail network. The trailhead is located at coordinates 42.17677, -71.50426.
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How hard is Charles River Trail?
Charles River Trail is rated as Blue difficulty. The physical rating is Moderate. The average grade is 0.1%. The climb difficulty is rated Blue.
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What is the elevation gain for Charles River Trail?
Charles River Trail has 3 ft of elevation gain. The trail has 2 ft of elevation descent. The elevation ranges from 316 ft to 322 ft.
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Is Charles River Trail a point to point trail?
Charles River Trail is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
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