Little River State Park in Waterbury, Vermont, is a campground park on the 850-acre Waterbury Reservoir within Mount Mansfield State Forest, serving as both a recreation base and a family-oriented nature destination. It offers year-round activities including swimming, boating, fishing, hiking, picnicking, bicycling, wildlife watching, and winter sports. Visitors can use swimming beaches, play areas, a boat launch, a ball field, and boat rentals, while nearby Waterbury Center State Park provides additional day-use access to the same reservoir. With 81 tent and trailer sites, 20 lean-tos, five cabins, a nature center, and interpreter-led programs, it combines extensive camping with outdoor education.