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Rock Circuit Loop

Intermediate/Difficult
  3.8 ( 5 ) Favorite

Trail

4.6 mile 7.4 kilometer loop
91% Runnable
Intermediate/Difficult

Elevation

Ascent: 619' 189 m
Descent: -619' -189 m
High: 281' 86 m
Low: 137' 42 m

Grade

Avg Grade: 5% (3°)
Max Grade: 23% (13°)

Dogs

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Trail shared by zach young

A nice loop that takes in some of the high points of the East Fells.

zach young

Features Views · Wildflowers

Overview

Blazed in white, this is a loop trail that can be done in either direction from a variety of starting points. The parts of the trail closer to the Flynn Rink parking lot are a fairly gentle run in the woods, while the parts around to Fellsway East feature a fair amount of ascents/descents and some short scrambles.

Need to Know

The trail crosses Fellsway East twice—be careful and watch for cars!

Description

The trail often takes short detours to reach more boulders (they don't call it Rock Circuit for nothing) and also visits the ruins of the MIT Geodetic Observatory. The trail is reasonably well-blazed (in white) but it crosses many other trails and fire roads so a map or the Trail Run Project mobile app is strongly recommended.

As shown, this lollipop run starts from the Flynn Rink parking area and uses the Cross Fells Trail: Flynn Skating Rink To Black Rock to join with the Rock Circuit Trail.

Flora & Fauna

Look for lots of lady slipper orchids in late spring.

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Trail Ratings

  3.8 from 5 votes

#3171

Overall
  3.8 from 5 votes
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Featured Run Rankings

#27

in Massachusetts

#3,171

Overall
62 Views Last Month
1,291 Since May 28, 2018
Intermediate/Difficult

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Photos

A frozen Cascade Falls makes for a beautiful wintertime reward at the trail's end.
Mar 5, 2017 near Melrose, MA

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