The Colorado River below the dam.
Another tidbit of information: The volume of water in Lake Mead would cover all of Connecticut to a depth of 10 feet. Funny, when we visited Death Valley, the park is said to be as big a Connecticut and Rhode Island combined. Nice to know little old Connecticut isn't forgotten out here in big sky country.
Lake Mead is more than 100 feet below normal due to a ten year long drought. Lake Mead is literally the life blood to several western states providing municipal water, electricity and water for agriculture.