Nearly half of the water drawn from the Colorado River goes to feed for beef and dairy cows. Researchers say modest changes ...

“We could wipe all of the cities off the map that are using Colorado River water ... beef and dairy cows in the U.S. and around the world. The valley is also home to cattle ranches with hundreds ...

“We could wipe all of the cities off the map that are using Colorado River water ... beef and dairy cows in the U.S. and around the world. The valley is also home to cattle ranches with hundreds ...

The gray wolf wandered through Rocky Mountain National Park in August, according to Colorado Parks and Wildlife’s monthly wolf tracking map ... the Pacific Ocean and river systems that drain ...

Despite taking around 350 additional samples along the Colorado River, Colorado Parks and Wildlife officials have yet to find any further discoveries of zebra mussels in the state.

Andy Robertson’s geospatial services team employees more than 50 students, who create high-tech digital maps. “Picture Google ...

A new book about water management on the Colorado River offers treasures for at least ... dams had support from conservationists in the World War II era. During this period, though the Sierra ...

A 59-year-old Salida man died Saturday while on a trip down the Colorado River in the Grand Canyon, according to the National Park Service. Park rangers responded to a call about a death near mile ...

In 2004, an informal group of Mesa County boaters decided to float down the Colorado River and pick up trash along the way. After two decades — and many tons of garbage — the now-annual effort ...

COCONINO COUNTY, Ariz. — There has been another fatality at Grand Canyon National Park, authorities announced Monday. Park officials said 59-year-old Patrick Horton of Salida, Colorado, was on ...

GRAND CANYON, AZ — Authorities say a missing boater was found dead along the Colorado River at the Grand Canyon. At around 9:15 p.m. Monday, Grand Canyon officials received a report of a missing ...

The man, Patrick Horton, 59, of Salida, Colo., was on a self-guided river trip with a group along the Colorado River when he was found dead by others in the group, the Park Service said in a ...