Officials want to make sure your next visit to Yosemite National Park isnt marred by a drone buzzing overhead. On Friday, the National Park Service issued a statement informing visitors that unmanned aerial vehicles (UAVs) are banned inside the parks 1,169 square miles of land in California. The Park Service pointed to existing federal conservation regulations in justifying the ban. By making clear that the Park Service does not welcome drones — and presumably enforcing those rules as best it can — officials hope to cut back on a practice that has become more and more popular over the years.