Green River Reservoir State Park is a state park in Hyde Park, Vermont, on the shore of .
Activities includes camping, swimming, boating, fishing, picnicking (at designated da-use-sites, access by boat only), wildlife watching.
Day use is allowed in limited capacity. Only boats powered by electric motors up to 5 mph and human-powered watercraft are allowed.
The park features 28 remote campsites around the reservoir, which can be reached only by boat.
The park is undeveloped, with only low-impact recreational use allowed on and around the reservoir. Parking is limited.