Barre Falls Dam - - Flood control, recreation, and natural resource information.
Birch Hill Dam - - Provides cultural history, location maps, brochure rack, photos, and recreation guide.
Buffumville Lake - - Flood control, recreation, fishing tips, maps, and fee schedules.
Cape Cod Canal - - Map showing land cut of the canal with bridges, roads and recreation sites, along with information on the Canal, from the U.S. Army Corps of Engineers.
DEM Office of Water Resources - - Precipitation and drought-status data from a network of approximately 150 precipitation observation stations operated by volunteers throughout Massachusetts.
EPA Watershed Information - - Collection of watershed related resources from the Environmental Protection Agency.
Hodges Village Dam - - Provides flood control information, trail maps, and current event listings.
Knightville Dam - - Includes fees and reservation information, flood control plans, and natural resource overview.
Littleville Lake - - Offers project map, event schedule, fees and reservation information, and natural resource overview.
Massachusetts Drinking Water Education Partnership - - Provides year-round educational programs and information to increase public understanding of drinking water issues. Dedicated to protecting drinking water supplies and public health through collaborative projects, culminating in Drinking Water Week events each May.
Mystic River Watershed Association - - Community organization sponsors research, activities, and conservation of the Mystic River watershed in state.
Mystic Watershed Collaborative (MWC) - - Envisions strategies and catalyzes the resources of Tufts University and MyRWA to address challenges and opportunities in the Mystic Watershed.
Nashua River Watershed Association - - Promotes water quality and conservation of open spaces. Includes descriptions of programs, a watershed map, events, a list of publications, and membership information.