While national parks across the country have been shuttered due to the current budget impasse, one remains open and operating: New Jersey’s Paterson Great Falls National Historical Park.

A real estate fluke accounts for why the park, which celebrates the area’s gritty industrial history and roaring waterfalls, is unaffected by the partial government shutdown. The National Park Service has not yet acquired the land; most of it is owned by the Paterson Municipal Utilities Authority.