First female chief ranger Yellowstone National Park’s 147-year history, Sarah Davis will be the 18th chief ranger of the vast 2.2 million acre park. In her new role as chief of Resource and Visitor Protection, she will manage over 275 employees in “Yellowstone’s Resource and Visitor Protection division who perform law enforcement and emergency medical services, search and rescue, wildland and structural fire, dispatch, fee collection, special use permitting, trails, corrals, and backcountry operations.”