The Colorado River in its entirety transports approximately 9 million tons of dissolved salt each year, according to a 2009 U.S. Geological Survey report on salinization in the Upper Colorado River.
A 4.5-magnitude earthquake detected in South Texas was felt across more than 100 miles, and in two major cities, according to U.S. Geological Survey data. The 4.5-magnitude earthquake — quite ...
The Colorado River in its entirety transports approximately 9 million tons of dissolved salt each year, according to a 2009 U ...