Correllus State Forest occupies over 5,343 acres in the center of Martha's Vineyard. It was created in 1908 as the "Heath Hen Reserve," in an attempt to prevent the bird's extinction. Sadly, the last heath hen was seen in 1932. Today it is managed for passive recreation, mostly hiking and cycling on its 14 miles of bike paths. It is also the focus of one of the largest environmental restoration projects in the country. As part of a cooperative effort, the State Forest is now working to bring back the site's native ecosystem.