The Mojave River is the lifeblood of the desert. Flows in the river cause a majority of the natural groundwater recharge that occurs within the Mojave Basin. Tributaries to the river originate primarily in the San Bernardino Mountains, with the West and East forks merging behind the Mojave River Dam in southern Hesperia.
In an average year, a little over 50,000 acre-
Map of the Mojave River and Water Table
The river also serves as MWA’s main groundwater recharge outlet. A majority of MWA’s State Water Project imports are recharged at sites along the river. When natural surface flows subside, the sandy soil conditions in the dry riverbed make for an ideal place to quickly percolate large volumes of imported water.