Mount Greylock is a 3,489 feet (1,063 m) mountain located in the northwest corner of Massachusetts and is the highest point in the state. Its summit is in the western part of the town of Adams (near its border with Williamstown) in Berkshire County. Although technically it is geologically part of the Taconic Mountains, Mount Greylock is commonly associated with the abutting Berkshire Mountains to the east.
https://en.wikipedia.org/wiki/Mount_Greylock