Mt. Greylock State Reservation
“At 3,491 feet, Mount Greylock is the highest point in Massachusetts. From its peak on a clear day, you can see as far as 90 miles away. No matter when you visit, there’s plenty to do and see.”
Here is the Reservation website. Phone 413-499-4262 Trail Map
The 0.25 mile loop trail at summit has “spectacular views.”