Santa Cruz River-Potrero Creek Confluence to Elephant Head Road COA
Gila topminnow are currently present in the Santa Cruz River. Gila topminnow in this reach co-occur with headwater livebearer hemicolonal hybrids, which are of unknown origin at this time. Ongoing management includes annual surveys in the Santa Cruz River and investigations into the origin and distribution of the headwater livebearer hybrids.