There are many unique species of fish living in the Colorado River. Some include the bonytail chub, razorback sucker, and ...

Three species of mussels that live in the Guadalupe River have been added to the endangered list, the U.S. Fish and Wildlife Service says. The Guadalupe fatmucket, Guadalupe orb and false spike have ...

SRP hopes a huge flume on the Verde River watershed will help measure the flow of water more accurately. The flume will be able to melt ice in the winter, solving a problem SRP has dealt with when ...