Welcome to Bomoseen State Park. The 3,576-acre park is located in the Taconic Mountains on the shores of Lake Bomoseen, the largest lake entirely within Vermont’s borders. The Taconics are the slate-producing region of Vermont, and the area's history parallels the rise and fall of Vermont's slate industry. The park contains several quarry holes and their adjacent colorful slate rubble piles as reminders of this period. These quarries provided slate for the West Castleton Railroad and Slate Company, a complex of 60 to 70 buildings that stood between Glen Lake and Lake Bomoseen. Several slate buildings and foundations remain in the park. A self-guided Slate History Trail leads hikers through remnants of this bygone era.

Part of the area comprising the park was owned by the Lake Shore Slate Co., owned and operated by Samuel L. Hazard.  When Mr. Hazard passed away in 1929 the remaining property was left to his stepdaughter, Martha Warren.  Mrs. Warren lived there year round, before making it her summer home. In 1959 she donated approximately 365 acres of land and included buildings to the State for recreational purposes and as a refuge and sanctuary for wildlife. A collection of historical objects is located in Mrs. Warren’s former home, which also includes the Park Ranger’s quarters.

First opened to the public in 1960, the park boundaries encompass more than 2,000 acres surrounding nearby Glen Lake and forested land comprising the camping area that is Half Moon State Park. Several hiking trails, including one to Half Moon, provide great hiking and wildlife-viewing opportunities. Boating, fishing and swimming are popular in Lake Bomoseen and nearby Glen Lake.

The campground contains 66 campsites including 10 lean-tos. Some sites are wooded and some are grassy and open. Some are located along the lakeshore. Flush toilets, hot showers ($), and a dump station are provided. The park has a beach for swimming and a picnic area. A snack bar concession and boat rentals (Canoe, kayak, row, and pedal) are available at the beach. Several hiking trails, including one to Half Moon State Park, provide great hiking opportunities. There is boating and fishing in Lake Bomoseen, as well as in nearby Glen Lake.