A U.S. Coast Guard HC-144 Ocean Sentry flies over the Black Hills of South Dakota near Keystone, S.D., Oct. 1, 2025. Air crews from Aviation Training Center Mobile and Air Station Sacramento conducted several practice flights over Mount Rushmore National Monument in preparation of a naturalization ceremony held there Oct. 2, 2025. (U.S. Coast Guard photo by Petty Officer 3rd Class Cheyenne Basurto)