Assuming that the granitic rock weighs approx. 175 pounds per cubic foot, the boulder weighs approx. 1.65 million pounds, or approx. 825 tons! Previously measured boulders in Dunbarton weighed in the range of 100 Tons. We have a winner.
Thanks to Orrie Dawson of Goffstown who provided the directions to the location of the biggest boulder in Dunbarton which was mentioned in Alice Hadley's classic history of our town, Where the Winds Blow Free.
The commission will organize a hike to it later this year.