Military Wiki
Battle of La Mesa
Part of the Mexican–American War
DateJanuary 9, 1847
LocationVernon, California
34°0′8.65″N 118°12′17.36″W / 34.0024028°N 118.2048222°W / 34.0024028; -118.2048222Coordinates: 34°0′8.65″N 118°12′17.36″W / 34.0024028°N 118.2048222°W / 34.0024028; -118.2048222
Result United States victory
 United States  Mexico
Commanders and leaders
Robert F. Stockton
Stephen Watts Kearny
José María Flores
457 600
Casualties and losses
1 killed
5 wounded
15 killed
25 wounded
California Historical Landmark
Official name La Mesa Battlefield
Reference no. 167[1]

The Battle of La Mesa of the Mexican–American War occurred on January 9, 1847, in present-day Vernon, California, the day after the Battle of Rio San Gabriel during the California Campaign.


After crossing the river, the American troops advanced to meet Flores' 300-strong force of Californio militia near a ravine where the city of Vernon now stands.


At La Mesa, the outgunned Californios killed one American and wounded five others in the force commanded jointly by Commodore Robert F. Stockton and General Stephen Watts Kearny. The American force was largely on foot but had rifles, while the Californios fought on horseback with only lances. In the battle, the Californios suffered 15 dead and 25 wounded. After a day of charging and outflanking the American soldiers, the Californios fell back in exhaustion and camped at present-day Pasadena, ceding Los Angeles to Stockton's forces.


The battle was the last armed resistance to the American advance in California, and General José María Flores returned to Mexico. The conquest and annexation of Alta California was settled with the signing of the Treaty of Cahuenga by US Army Lieutenant-Colonel John C. Frémont and Californio General Andrés Pico on January 13, 1847.

The site of the battle is now registered as California Historical Landmark #167.[1] The marker is located at 4490 Exchange Avenue at Downey Road in Vernon.[1]

See also


  1. 1.0 1.1 1.2 "La Mesa Battlefield". Office of Historic Preservation, California State Parks. Retrieved 2012-10-07. 
  • Bancroft, Hubert Howe (1882). The Works of Hubert Howe Bancroft. San Francisco: A.L. Bancroft & Co. ISBN 2539133.

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