Waldo

Waldo, county, south-central Maine, U.S. It comprises a coastal region bounded to the east by the Penobscot River and Bay and includes several islands in the Atlantic Ocean, notably Isleboro Island. Other waterways are the Sebasticook, Passagassawakeag, and St. George rivers and Unity and Sheepscot ponds. Spruce and fir are the major forest types. Parklands include Lake St. George, Moose Point, Fort Point, Warren Island, and Swan Lake state parks. The county seat is the...