In addition to the old growth, Mohawk Trail State Forest contains many of the tallest trees in Massachusetts as verified by the Eastern Native Tree Society. Most of these tallest trees are between 100 and 200 years old and are properly classified as second growth. Among the tall tree species, the white pine stands supreme. As of the end of the 2011 growing season, 122 eastern white pines had been measured to heights of 150 feet or more and 14 surpass . The tallest accurately measured single tree as tracked by the Eastern Native Tree Society in the New England grows in Mohawk and measured in height at the end of the 2011 growing season. The tree is named for Mohawk dignitary, the late Chief Jake Swamp. Of public properties in the Northeast, only Cook Forest State Park in Pennsylvania rivals Mohawk Trail State Forest in the and over height class. The present count for Cook Forest as determined by the Eastern Native Tree Society and the Pennsylvania Department of Conservation and Natural Resources is 112. The Eastern Native Tree Society maintains records of all white pines in the Northeast confirmed to a height of 150 feet or more.