The Whiskeytown–Shasta–Trinity National Recreation Area is a United States National Recreation Area in northern California. The recreation area was authorized in 1965 by the United States Congress. Recreational activities available include swimming, fishing, boating, camping, and hiking. The Whiskeytown–Shasta–Trinity National Recreation Area (WST-NRA) has a total of 246,087 acres (99,588 ha) of land, which is divided into the Shasta, Trinity, and Whiskeytown Units. The Shasta–Trinity National Forest surrounds the Shasta and Trinity units, so they are managed by the United States Forest Service. The National Park Service manages the Whiskeytown unit. Each of the units encompasses a large reservoir (man-made lake) and its surrounding natural features, habitats, and terrain. The WST-NRA has interesting wildlife viewing opportunities, including over sixty pairs of osprey, thirty pairs of nesting bald eagles, other resident and migrating birds, and deer and bear populations. Plant communities include Riparian, Interior chaparral, Blue oak grasslands, Mixed oak woodlands, and Knobcone pine, Ponderosa pine, or mixed evergreen forests.