The Groton Open Space Association organized in the 1960s to support early conservation initiatives in the City of Groton. Notably, they influenced the state to initially establish and later expand Haley Farm State Park, nestled along the coast and providing spectacular views of Palmer Cove and Fishers Island Sound. Today, the GOSA facilitates responsible stewardship of public spaces as a member of the Friends of Connecticut State Parks. They work to maintain hiking trails in the Groton area, support habitat restoration, and encourage better water protection efforts. They advocate for environmental causes in the Groton area, and they educate the public on relevant issues. They actively cooperate with other nonprofit organizations and governmental organizations with similar goals.
Groton Open Space Association
- Friends of American Legion & Peoples State Forest
- Friends of Auerfarm Scenic Reserve
- Friends of Beckley Furnace State Park
- Connecticut Forest & Park Association
- Friends of Chatfield Hollow State Park
- Friends of Dinosaur State Park & Arboretum
- Friends of Fort Griswold Battlefield State Park
- Friends of Fort Trumbull State Park
- Friends of Gillette Castle State Park
- Friends of Goodwin Forest
- Groton Open Space Association
- Friends of Hammonasset Beach State Park
- Friends of Harkness Memorial State Park
- Friends of Heublien Tower
- Friends of Mansfield Hollow State Park
- Friends of Mono Pond State Park
- Friends of Pachaug State Forest
- Friends and Neighbors of Putnam Memorial State Park
- Friends of Seaside State Park
- Friends of Sessions Woods WMA
- Friends of Sherwood Island State Park
- Sleeping Giant Park Association
- Caretakers of Soapstone
- Friends of Sunrise-Machimoodus State Parks
- Friends of Topsmead State Forest
- Friends of Valley Railroad
- West Rock Ridge Park Association
- Windsor Locks Canal Trail Friends