Oasis Ranger Station Airport (9FL7) is a small, restricted-use airstrip located at the Oasis Ranger Station within Big Cypress National Preserve near Everglades City, Florida. It serves as a functional facility for U.S. government and National Park Service operations in the remote Big Cypress swamp region. The airstrip is not open to the general public and is primarily used for official ranger, law enforcement, and resource management activities within the preserve. It has no commercial aviation function and lacks standard passenger infrastructure. The surrounding Big Cypress National Preserve covers over 720,000 acres of subtropical wilderness, making air access an important logistical tool for federal personnel operating in this difficult-to-reach region.