San Antonio Reservoir is a man-made lake located in Monterey County, California. It was created in 1965 by the construction of an earthfill dam across the San Antonio River. The reservoir has a capacity of approximately 62,000 acre-feet and is used primarily for agricultural irrigation. The reservoir receives water from various sources including surface flows from the San Antonio River and its tributaries, as well as from snowpack melting from nearby mountains. The reservoir is also used for recreational activities such as fishing and boating. In recent years, the reservoir has faced challenges due to drought conditions and water shortages leading to decreased agricultural production. However, efforts are being made to conserve water resources and improve the management of the reservoir.