The Mt. Agamenticus to the Sea Conservation Initiative (MTA2C) strives to protect a wide array of ecological resources and community values in the fastest growing county in Maine. The MTA2C Initiative is a coalition of non-profit organizations and governmental agencies that work together on a landscape scale conservation project in an area of approximately 48,000 acres that encompasses the York River, the Braveboat Harbor Estuary, Gerrish Island and the largest intact coastal forest between Acadia and the New Jersey Pine Barrens.

The region is endowed with large unfragmented forests, rare and exemplary natural communities, and the greatest diversity of threatened and endangered species of any region in Maine. Oak forests, vernal pools, salt marshes, tidal rivers and dune grasslands are among the rich ecological features found here. These natural communities provide habitat for a wide variety of plant and animal species such as migratory birds, anadromous fish and rare turtles. The Gulf of Maine coastal waters from Gerrish Island in Kittery to Cape Neddick in York have been designated as Essential Fish Habitat by the National Marine Fisheries Service for 30 species of fish and mollusks.

The Mt. Agamenticus to the Sea landscape is also rich in human history. The land, rivers and sea have provided local inhabitants with lumber, farmland and fish for over 300 years. Careful stewardship has sustained many generations without destroying the ecological systems on which their livelihoods have been built.