Latitude: 42°21'47"N
Longitude: 71°35'26"W
Large road cuts at and near the junction of Interstate 290 and Interstate 495. There were three phases of construction: 1970, 1973 and 1980.
Mineral List
40 entries listed. 33 valid minerals.
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References
Garza, Steve (1980): Routes 495 and 290, Marlborough, Massachusetts (Boston Mineral Club Newsletter Dec., 1980).
White, Lawrence W. (1997): Mineralization of Route 290 Road Cut (Rocks & Minerals,, May 1997)
Lawrence White personal collection.
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