But that didn’t stop a Phoenix-based developer from applying for federal permits to dam the Little Colorado River and its tributaries on Navajo Nation land. Now, a federal policy requires tribal ...

Up-basin in Colorado River tributaries in Eagle County — where naturally occurring salinity is very low — Interstate 70 probably accounts for the largest input of salt, Kanzer said.

according to a 2009 U.S. Geological Survey report on salinization in the Upper Colorado River. In the river and its tributaries, salinity is both naturally occurring and exacerbated by human activity.

With snowpack levels hovering around 84% of normal, projections for Lake Mead released on Friday show the reservoir dropping ...

This winter and spring are shaping up to be bad times for the Colorado ... river gradually, allowing continuous buildup of spring and summer runoff into the river from the mountains and its ...

Snowpack across Colorado ranges from close to normal levels near the Colorado River headwaters ... 31% of normal — the lowest in the state. A map from the U.S. Department of Agriculture ...

An “essential” Colorado River water conservation program faces dual threats as the new Trump administration attempts to freeze its funding and a lapse in authorization creates delays that may ...

This spring, the Colorado River District will be hitting 11 communities in western Colorado to discuss water issues facing the basin for its annual “State of the River ” meetings. During the ...