Much of the 84-acre Washington County Public Lake is surrounded by mixed second-growth forest with dense underbrush. Anhingas, wading birds, Ospreys, and Bald Eagles are regular visitors to the lake. Orchard Orioles, Purple Martins, and Barn Swallows nest in the picnic area. Brown-headed Nuthatches, Hooded Warblers, and Eastern Towhees are found in the pines and underbrush.
Extensive marsh in the east and southwest parts of the old quarry, now lake and cypress swamp southwest of the old quarry will be of particular interest to birders. Shore birds observed on the margins of the lake include Least Bitterns, Soras, Least and Spotted sandpipers, Greater Yellowlegs, and Killdeer.