President Trump's proposed changes to national park management, including increased fees and potential transfer of control to states, were raising concerns about park safety and economic impact.

U.S. land managers are racing the clock as hotter, drier weather raises the risk of wildfires in the nation’s overgrown forests with each passing year.

"As stewards of some of our country's most beloved national treasures, we are devastated by the loss of the Grand Canyon Lodge," Aramark, the company that operated the lodge, said in a statement.