California sided with the Union, but most Southern Californians sympathized with the South. However, Southern Californians had other things on their minds besides war. Massive floods in 1862 were followed by a severe drought that devastated the cattle industry, which dominated Southern California's economy at the time.
In 1862, the war came perilously close to California when the Confederate Army came within about 80 miles of the border, briefly making contact with Union troops somewhere near what is now Dateland, Ariz. The westernmost land battle of the war was fought at Picacho Peak, about 200 miles east of the border, just west of Tucson.
“The westernmost land battle of the war was fought at Picacho Peak, about 200 miles east of the border, just west of Tucson.”
With a total of two dozen combatants the battle is better described as a skirmish.
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