NM, Sonora (Mexico). Historically, the Gila chub was found
in most headwater streams of the Gila River drainage in Arizona
and New Mexico, and within the Santa Cruz and San Pedro river
systems of Arizona and Sonora, Mexico. It is thought to be
extirpated from New Mexico. In Sonora, it was recently found
in two cienegas near the headwaters of the San Pedro River.
In Arizona it is reduced to fewer than 15 small streams in
central and southeastern areas of the state
Livestock grazing, groundwater pumping, water diversion,
dams, road building, and exotic species.
Listing petition filed on 6-5-98 by Center for Biological
Diversity and Sky Island Watch.
To Be Taken
Proposed listing rule with critical habitat.