Massachusetts Route 23

Route 23 marker

Route 23
Route information
Length: 38.4283 mi[1] (61.8444 km)
Major junctions
West end: NY-23.svg NY 23 in Hillsdale, New York
  MA Route 41.svg Route 41 in Egremont
MA Route 71.svg Route 71 in Great Barrington
US 7.svg U.S. Route 7 in Great Barrington
MA Route 183.svg Route 183 in Great Barrington
MA Route 57.svg Route 57 in Monterey
MA Route 8.svg Route 8 in Otis
East end: US 20.svg U.S. Route 20 in Russell
Highway system

Massachusetts State Highway Routes

Route 22 Route 24

Route 23 is a west–east route in the western Massachusetts counties of Berkshire and Hampden. The entire route is 38.43 miles (61.85 km). The vast majority of the road (approximately 31.2 miles) follows the Knox Trail, the historic route of General Henry Knox took to bring cannon from Fort Ticonderoga on Lake Champlain in New York to aid in ending the Siege of Boston in the winter of 1775-76.[2]


Route description

Route 23 begins at the New York state border at Egremont, Massachusetts, as a continuation of New York State Route 23 from Hillsdale. The road passes Catamount Ski Area and the village of South Egremont before merging with Route 41, just west of Great Barrington. It passes the Egremont Country Club and the Great Barrington Airport before passing the eastern terminus of Route 71. At this point the road becomes the Knox Trail. From there the road heads towards the town center, merging with U.S. Route 7, following that road for one mile (1.6 km) before leaving Route 41, with Routes 7 and 23 turning eastward, crossing the Housatonic River. After another half-mile, U.S. Route 7 heads northward, leaving Route 23 to head eastward, this time combined with Route 183. (There is a Knox Trail marker at this point.) The two pass Butternut Basin Ski Area before crossing the Appalachian Trail and entering Monterey. Just east of the line, Route 183 heads south at the western terminus of Route 57, leaving Route 23 alone. From there, the road passes through Monterey, running parallel to and eventually crossing the Konkapot River near the center of town. The road passes Lake Garfield and Chestnut Hill before crossing into Otis. The road crosses through a section of Otis State Forest and passes the Otis Ridge Ski Area before merging for a short time with Route 8 through the town's center. From there, the road heads eastward again, passing between Big Pond, Benton Pond and the Otis Reservoir (this area is also the site of another Knox Trail marker) towards the Hampden County line and the town of Blandford. Once in Blandford, the road heads due east, passing Miller Swamp, Jackson Hill and Blair Pond before entering the town's center, at which point the road begins to runs parallel to the south of Interstate 90 (the Massachusetts Turnpike). Route 23 enters Russell, heading south of Punchbowl Mountain. The Knox Trail leaves the route at Knox Mountain Road, and the route crosses an overpass over the interstate before finally ending 1.1 miles (1.8 km) east at the junction of U.S. Route 20 near the town's center.

Junction list

County Location Mile Routes Intersected Notes
Berkshire Egremont 0.0 NY 23 Western end of Massachusetts Route 23.
Road continues into New York as NY Route 23.
3.2 Route 41 Beginning of concurrency with Route 41.
Great Barrington 5.6 Route 71 west Eastern end of Route 71.
Henry Knox Trail joins Route 23.
7.1 US 7 Begin triple concurrency.
8.1 Route 41 Route 41 leaves triple concurrency.
Concurrency between Route 23 & US 7 continues eastward.
8.6 US 7 north / Route 183 north End of concurrency with US 7.
Beginning of concurrency with Route 183.
Monterey 12.1 Route 57 east / Route 183 south End of concurrency with Route 183.
Beginning of concurrency between Routes 57 & 183.
Otis 23.3 Route 8 north Beginning of concurrency with Routes 8 & 23.
23.5 Route 8 south End of concurrency with Routes 8 & 23
Hampden Russell 36.7 General Knox Road Henry Knox Trail leaves Route 23.
I-90.svg I-90 No access between Route 23 & the Mass Pike.
38.43 US 20 Eastern end of Route 23.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
     Concurrency terminus     Closed/Former     Incomplete access     Unopened



  1. ^ Executive Office of Transportation, Office of Transportation Planning - 2005 Road Inventory
  2. ^ The Knox Trail

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