Kevin Dahl is the Arizona Program Manager for National Parks Conservation Association where he works on issues concerning the Arizona 25 units of the National Park Service, including such well-known parks as Grand Canyon and Saguaro. Prior to NPCA, Kevin was executive director of Native Seeds/SEARCH, a regional group that works to preserve the genetic diversity of Southwestern Native American crops. He was also executive director of the Tucson Audubon Society, and Natural Resources Superintendent for Pima County's Parks and Recreation Department. An alumnus of both the University of Arizona and Arizona State University, his interest in plants led him to obtain his degree in ethnobotany from Prescott College. Kevin is author of Wild Plants of the Sonoran Desert, published by the Arizona-Sonora Desert Museum, and Native Harvest: Authentic Southwestern Gardening, published by the Western National Parks Association.