Battle of Providencia
1845 CE.
Shown on the map at 34.180°, -118.328°.
The Battle of Providencia (also called the "Second Battle of Cahuenga Pass") took place in Cahuenga Pass in early 1845 on Rancho Providencia in the San Fernando Valley, north of Los Angeles, California. Native Californios successfully challenged Mexican forces regarding autonomy of Alta California.
Text from the Wikipedia article Battle of Providencia, licensed CC BY-SA 4.0.