dam
Posted May 10, 2011, 7:29 am
Lauren Gambino
/Cronkite News Service
Some Arizona dams considered to pose high or significant risk to people, property or the environment don't have updated emergency action plans on file, as required by law.... Read more»
Posted Feb 14, 2011, 4:55 pm
Tara Alatorre
/Cronkite News Service
Artificial floods over 14 years helped rebuild sandbars in the Grand Canyon but may have pushed non-native rainbow trout into an area frequented by the endangered humpback chub,... Read more»