The land has cracked and the water has dried up. The entire western region of the United States is experiencing a rare level of drought that hasn't been seen in decades. According to the U.S. Drought Monitor, at least 16 percent of California is in exceptional drought, the most severe level of dryness. /CFP

An expanding shoreline is seen near docks in an aerial view on Sunday. The water level of Lake Isabella, California is down to 16 percent capacity and continues to drop. /CFP

Sprinklers water a lawn at Golden Gate Park in San Francisco, California on Monday, but several Bay Area counties have imposed restrictions on watering lawns to try to deal with the severe drought emergency. /CFP