Castaic is a rural unincorporated community located in the northern part of Los Angeles County, California. Many thousands of motorists pass through Castaic daily as they drive to or from Los Angeles on Interstate 5. Castaic Lake is part of the California Water Project and is the site of a hydro-electric power plant. Castaic is located approximately 40 miles northwest of the downtown Los Angeles Civic Center and about 10 miles north of the city of Santa Clarita, California. Between 1890 and 1916, the Castaic Range War was fought in Castaic country over ranch boundaries and grazing rights. It was the biggest range war in U.S. history. A feud started over Section 23, where the Stonebridge subdivision is now. William Chormicle had legally bought the property, but William "Wirt" Jenkins was already storing grain on it and said he had filed for ownership. During a heated dispute, Chormicle and a friend shot and killed two of Jenkins's cowhands. They were acquitted in court.