“We embrace many activities in national parks because they enhance visitor experiences with the iconic natural, historic and cultural landscapes in our care,” NPS director Jonathan Jarvis said in a memorandum. “However, we have serious concerns about the negative impact that flying unmanned aircraft is having in parks, so we are prohibiting their use until we can determine the most appropriate policy that will protect park resources and provide all visitors with a rich experience.”

 

Disruptive incidents have occurred at the Grand Canyon, Mount Zion, and Mount Rushmore, according to the agency.