Skip to main content
Mount Greylock South Flank and Rounds Rock route map
Difficulty: DifficultLoop
Massachusetts

Mount Greylock South Flank and Rounds Rock

Lanesborough, Massachusetts

7.6 mi

Distance

1,444 ft

Elev. Gain

3h 8m

Est. Time

Loop

Route Type

Difficult

Difficulty

About This Trail

We don't publish a description for Mount Greylock South Flank and Rounds Rock unless we can point you at the agency it came from. We don't have one yet. The planning figures above — distance, elevation gain, estimated time, route type — come from the source listed on this trail.

The managing agency is the authority for conditions, closures and route notes. See official sources below. Spot something we should add?

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Elevation Profile

Min:518 ft
Max:789 ft
Gain:440 ft
Loss:440 ft
Elevation profileA line rising and falling between 518 ft and 789 ft across 7.6 mi along the route, drawn from start to end.518 ft608 ft699 ft789 ft0.0 mi1.9 mi3.8 mi5.7 mi7.6 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi518 ft
High point4.1 mi789 ft
End7.6 mi518 ft

Trail Details

Route Type
Loop

Official sources & verification

Verify before you go

Where it is

Nearest town:
Cheshire, MA · about 2 mi away
County:
Berkshire County, MA

Nearest town and county from U.S. Census Bureau place records and county boundaries.

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

Reviews

No reviews yet

Be the first to share your experience and help others plan their visit.

Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Nearby Trails

More trails near Mount Greylock South Flank and Rounds Rock
Bradley Farm Interpretive Trail

Bradley Farm Interpretive Trail

2.1 mi
TrailDifficulty: Easy
Rounds Rock Trail

Rounds Rock Trail

0.9 mi
TrailDifficulty: Easy
Cheshire Cobbles Loop

Cheshire Cobbles Loop

4.1 mi
TrailDifficulty: Moderate
Cheshire Cobbles via Appalachian Trail

Cheshire Cobbles via Appalachian Trail

2.1 mi
TrailDifficulty: Moderate
Mount Greylock and Saddle Ball Mountain

Mount Greylock and Saddle Ball Mountain

7.5 mi
TrailDifficulty: Difficult
Saddle Ball Mountain via Appalachian Trail

Saddle Ball Mountain via Appalachian Trail

7.3 mi
TrailDifficulty: Difficult

Stay nearby

Campgrounds near this trail

More campgrounds

Similar length

Similar trails in Massachusetts

All Massachusetts trails
Cheshire Harbor Trail to Mount Greylock

Cheshire Harbor Trail to Mount Greylock

Massachusetts

6.2 mi1,965 ftgain
TrailDifficulty: Difficult
Blue Hills Skyline Trail

Blue Hills Skyline Trail

Massachusetts

7.5 mi1,854 ftgain
TrailDifficulty: Difficult
F. Gilbert Hills State Forest Loop Trail

F. Gilbert Hills State Forest Loop Trail

Massachusetts

7.1 mi1,129 ftgain
TrailDifficulty: Difficult
Mount Greylock via Bellows Pipe and Thunderbolt Trail

Mount Greylock via Bellows Pipe and Thunderbolt Trail

Massachusetts

5.1 mi2,352 ftgain
TrailDifficulty: Difficult
Lynn Woods Reservation

Lynn Woods Reservation

Massachusetts

4.4 mi666 ftgain
TrailDifficulty: Moderate
Great Brook Farm Woodchuck, Chicken, and Beaver Loop Trail

Great Brook Farm Woodchuck, Chicken, and Beaver Loop Trail

Massachusetts

4.7 mi581 ftgain
TrailDifficulty: Moderate
Spot an error in our data on Mount Greylock South Flank and Rounds Rock?