Forest Watch: Membership, news and campaigns to keep a protective eye on the forests of the state and greater region.Proctor Maple Research Center: A site for maple research, study of sugar maples, and serves as a field classroom.Sierra Club - Vermont Chapter: To explore, enjoy and protect the wild places of the earth.Vermont Tree Society: Organization exists as a means of coming together to understand, cherish and sustain the notable trees of the state. Provide events, speakers, photographs and "the Vermont Big Tree List".