The Sierra Club has posted incorrect information about I-66  on their website as part of a report against urban sprawl. The group claims that I-66 would "cut through Mammoth Cave National Park." This statement is incorrect. Though a final path for I-66 in the Warren County has yet to have been chosen, a preliminary map  is available. Though the park is not shown on this map, the park is entirely to the north of KY 259 and US 31W which are shown on the map. None of the preliminary routes are north of these roads.