Association praises Saguaro National Park
Explorer file photo, A buffelgrass burn in Saguaro National Park's Western District in 2008. Researchers at the park have studied various means of controlling the invasive plant.
Photo courtesy of the National Park Service, Researchers' cameras are rigged to photograph animal activity at night in Saguaro National Park. Cameras recorded a fox passing through a section of the park.
Photo courtesy of the National Park Service, Saguaro National Park Ranger Don Swann participates in research focused on the desert tortoise.