The Blackstone River Valley National Heritage Corridor is a special type of national park. It is a region of nearly 400,000 acres located within Worcester County in central Massachusetts and Providence County in northern Rhode Island. The National Corridor was designated by an Act of Congress on November 10, 1986 to preserve and interpret for present and future generations the unique and significant value of the Blackstone Valley. It includes cities, towns, villages and almost one million people. The Federal government does not own or manage any of the land or resources in the corridor as it does in the more traditional national parks. Instead the National Park Service, two state governments, dozens of local municipalities, businesses, nonprofit historical and environmental organizations, educational institutions, many private citizens, and a unifying commission all work together in partnerships to protect the Valley's special identity and prepare for its future.