CT-MA-RI - Thompson (CT), Douglas (MA), Burrelville (RI)
Posted by: Groundspeak Premium Member NorStar
N 42° 00.476 W 071° 47.961
19T E 268183 N 4654448
Quick Description: The tri-state boundary marking where Connecticut, Massachusetts, and Rhode Island meet is set in the woods off a rail trail.
Location: Connecticut, United States
Date Posted: 11/25/2017 7:48:00 PM
Waymark Code: WMX4FH
Published By: Groundspeak Premium Member fi67
Views: 3

Long Description:
At a point where the three southern New England states, Connecticut, Massachusetts, and Rhode Island, meet, is a four-sided monument with the states engraved on the sides.

The marker is located off a rail trail that runs through both Connecticut and Massachusetts. In Connecticut, it is known as the Airline State Park Trail. In Massachusetts, it is known as the Southern New England Trunkline Trail. The best way to get there is to drive on Southwest Main Street (Douglas), through the state boundary line into Connecticut, then drive roughly a mile to the village of East Thompson where there is a dirt parking area by where the Airline Trail crosses the road. From there, walk east along the trail until you see a trail junction where there is another state boundary marker, between Connecticut and Massachusetts. Walk along this trail south to the marker. The one-way distance is about a mile. There are other trails that meet at this marker. A link to a map is included - my suggestion is to print it out before you go - I saw no printed map showing this trail in the area.

The marker is a typical stone monument, standing about four feet tall and about 14 inches on a side. There is a pyramid on top. On the sides are as follows: North: "MASS 1883", South: "RI 1883" and West, "Conn" (the east side is also in Massachusetts).

According to one source, a commission between Massachusetts and Rhode Island set this marker. Since then, in 1940, the marker was confirmed to be accurately marking the boundary.


ctmq.org (ct-ma-ri-tri-point):
(visit link)

Trails and Walks RI (Blog):
(visit link)

Airline State Park Trail:
(visit link)

Southern New England Trunkline Trail:
(visit link)
Political Entities:
Within the United States of America, the southern New England states of Connecticut, Massachusetts, and Rhode Island.

Type of Location: National Tripoint

Current or Historic: Current Border

Period of the tripoint: 12/1/1883

URL: [Web Link]

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