The San Pedro River, which flows through Sierra Vista, Arizona, provides vital riparian habitat in the desert for many species. But its flow is threatened by increasing groundwater use around Sierra Vista and the U.S. Army's Fort Huachuca. ©Ted Wood Usage rights are granted for editorial and nonprofit purposes only. No commercial or re-sale rights are granted without permission of the photographer. Full use and licensing information can be found here, https://waterdesk.org/multimedia/license
