Charles River Reservation
- Seventeen mile long recreational area in Boston, Cambridge, Newton, and Waltham, including the Charles River Basin and Esplande. Describes facilities, services, and events. Includes a map and photographs of the river.
- http://www.mass.gov/dcr/parks/metroboston/charlesR.htm

Breakheart Reservation
- 640-acre hardwood forest in Saugus and Wakefield with hiking, birdwatching, and freshwater swimming. Includes descriptions of services and facilities, along with a map.
- http://www.mass.gov/dcr/parks/metroboston/breakhrt.htm

Greater Boston Parks
- Organized by town, with description and contact information.
- http://www.visitnewengland.com/mass/boston/places/parks.htm

The Emerald Necklace Conservancy
- Public-private partnership formed to preserve the Emerald Necklace parkland in Boston and Brookline. Provides information on projects, a descriptive tour, and biographical notes on designer Frederick Law Olmsted.
- http://www.emeraldnecklace.org/