In October 2006, an anonymous donor gave The Nature Conservancy 1,910 acres in Phippsburg, including more than 4 miles of coastline surrounding the Basin, a saltwater inlet on the New Meadows River. In 2012, the Conservancy transferred 64 acres to the town of Phippsburg to be used for town recreational access and school programs. The Basin Preserve is a recreational and scenic treasure, providing coastal access for clamming, fishing and miles of hiking trails. The Basin is the Conservancy’s largest coastal preserve in Maine and one of the Conservancy’s most valuable individual land gifts.

The acquisition of The Basin Preserve is a substantial addition to existing protected lands and waters in the Kennebec Estuary. Comprised of Merrymeeting Bay and the Lower Kennebec River, the Kennebec Estuary is the largest tidal estuary on the East Coast north of the Hudson River.

In addition to protecting important estuary habitat of the Basin and shoreline of the New Meadows River, The Basin Preserve features extensive stands of rare Pitch Pine Woodlands. A series of ridges run down the length of the preserve in a northeast/southwest orientation. One of the larger ridges on the peninsula, Pasture Ridge, runs down the middle of the preserve and hosts an exemplary stand of Pitch Pine Woodland, one of the largest in Maine. These beautiful woodlands are influenced by past fires and pitch pine’s ability to persist in harsh growing conditions of acidic, thin soil on exposed granite ridge-tops. Sedge meadows, shrub marshes and black spruce bogs occupy the valleys between the ridges and provide excellent habitat for many plants and animals. One large stand of black gum, a southern tree species at its northern limit in Maine, is found on the preserve.