U.S. Geological Survey
Massachusetts DEP Publications
Environmental Protection Agency
Massachusetts Association of Professional Foresters
Massachusetts Association of Professional Foresters. The MAPF is dedicated to the improvement of the practice of forestry in the Commonwealth of Massachusetts. Membership is open to professional foresters with formal forestry education and experience in the practice of forestry in Massachusetts. This site contains information for members, but also a variety of pages and links that will be of interest to landowners, other professionals, and the general public.