Where does all the water go?
About one-third of the water flows into the Truckee River through the dam at Tahoe City for downstream use with any remaining water flowing 140 miles to the river terminus at Pyramid Lake. The remaining two-thirds of water evaporate from the lake surface at an annual average rate of 0.1 inch per day. The average daily evaporation of water from the lake surface would serve the daily needs of 3.3 million Americans.
Fact credit: TahoeFacts.com