A group of state attorneys general on Wednesday urged the National Park Service to scrap its proposal to more than double the entrance fee at 17 popular national parks. The top government lawyers from 10 states and the District of Columbia sent a letter saying the increase could put access to the parks out of reach for many Americans. "We cannot let the most popular and awe-inspiring national parks become places for the wealthy," they said in the letter to the Park Service's acting director. All the signers are Democrats except for Arizona's Mark Brnovich, a Republican. The AGs say the increase is inconsistent with the laws governing the park system because the administration did not provide an economic analysis to support its claims that raising fees would increase revenue. The Park Service estimates that higher fees will generate an additional $70 million a year, more than half of which would be used to chip away at a backlog of maintenance and infrastructure projects.Read more on NewsOK.com