Sign at the south entrance to Grand Canyon National Park, Ariz.
This Oct. 3, 2013 file photo shows a sign at the south entrance to Grand Canyon National Park, Ariz., indicates the park is closed. The Obama administration says it will allow states to use their own money to reopen some national parks that have been closed because of the government shutdown. Governors in at least four states have asked for authority to reopen national parks within their borders because of the economic impacts caused by the park closures. (AP Photo/Brian Skoloff, File)
Read the article: Feds will let states pay to reopen national parks