Alta California ( ) was a province and territory in the Viceroyalty of New Spain and later a territory and department in independent Mexico. The territory was created in 1769 out of the northern part of the former province of Las Californias, and consisted of the modern American states of California, Nevada, Arizona, Utah, western Colorado and southwestern Wyoming. The territory passed to American control after the Mexican � American War and ceased to exist with the creation of the State of California in 1850.
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