California Battalion

California Battalion
Grigsby Company Bear Guidon (E company)
ActiveJune 1846 – May 1847
DisbandedMay 31, 1847
Country California Republic
Allegiance United States,  California Republic
Branch California Army
TypeMounted Infantry
SizeBattalion
Garrison/HQSonoma, California
Nickname(s)Fremont's Battalion
Engagements
Commanders
Current
commander
William B. Ide
John C. Frémont

The California Battalion (also called the first California Volunteer Militia and U.S. Mounted Rifles) was formed during the Mexican–American War (1846–1848) in present-day California, United States. It was led by U.S. Army Brevet Lieutenant Colonel John C. Frémont and composed of his cartographers, scouts and hunters and the California Volunteer Militia formed after the Bear Flag Revolt. The battalion's formation was officially authorized by Commodore Robert F. Stockton, commanding officer of the U.S. Navy Pacific Squadron.