The Gila chub once benefited from the engineering feats of beavers living in the upper Gila River basin, whose dams created deep, slow-moving pools the chub loved. So in the late 1800s, when beavers ...

Impacted species include the endangered Gila chub and the threatened yellow-billed cuckoo, which have designated critical habitat in the park's Horseshoe Allotment, as well as the Gila topminnow and ...