The Battle of La Mesa was the final battle of the

California Campaign California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

during the

Mexican–American War The Mexican–American War, also known in the United States as the Mexican War and in Mexico as the (''United States intervention in Mexico''), was an armed conflict between the United States and Mexico from 1846 to 1848. It followed the ...

, occurring on January 9, 1847, in present-day

Vernon, California Vernon is a city five miles (8.0 km) south of downtown Los Angeles, California, the nearest separate city to downtown Los Angeles. The population was 112 at the 2010 United States Census, the least of any incorporated city in the state. I ...

, the day after the Battle of Rio San Gabriel. The battle was a victory for the

United States Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, ...

under Commodore

Robert F. Stockton Robert Field Stockton (August 20, 1795 – October 7, 1866) was a United States Navy commodore, notable in the capture of California during the Mexican–American War. He was a naval innovator and an early advocate for a propeller-driven, steam- ...

and General Stephen Watts Kearny.

Background

Not finding any Californians at Governor

Pío Pico Don Pío de Jesús Pico (May 5, 1801 – September 11, 1894) was a Californio politician, ranchero, and entrepreneur, famous for serving as the last governor of California (present-day U.S. state of California) under Mexican rule. A member of t ...

's ranch, the Americans under Stockton and Kearny crossed the plain between the San Gabriel River and the

Los Angeles River , name_etymology = , image = File:Los Angeles River from Fletcher Drive Bridge 2019.jpg , image_caption = L.A. River from Fletcher Drive Bridge , image_size = 300 , map = LARmap.jpg , map_size ...

called La Mesa.Bauer, K.J., 1974, ''The Mexican War, 1846–1848'', New York:Macmillan, They encountered

José María Flores General José María Flores was a Captain in the Mexican Army and was a member of ''la otra banda''. He was appointed Governor and ''Comandante General'' ''pro tem'' of Alta California from November 1846 to January 1847, and defended California ...

' 300-strong force of

Californio Californio (plural Californios) is a term used to designate a Hispanic Californian, especially those descended from Spanish and Mexican settlers of the 17th through 19th centuries. California's Spanish-speaking community has resided there sin ...

militia A militia () is generally an army or some other fighting organization of non-professional soldiers, citizens of a country, or subjects of a state, who may perform military service during a time of need, as opposed to a professional force of r ...

, including artillery, near where the city of Vernon now stands, about four miles south of Los Angeles.

Battle

The Californian guns were ineffective, while the American guns responded from their square as the Americans advanced. Flores extended his line and brought up two more guns. Stockton halted and formed his guns into a single battery. After fifteen minutes, Stockton's fire drove the Californian artillery from effective range. Flores sent his lancers against the American left flank but were driven back; most of his men deserted, allowing the Americans to advance into Los Angeles.

Aftermath

The battle was the last armed resistance to the American

conquest of California The Conquest of California, also known as the Conquest of Alta California or the California Campaign, was an important military campaign of the Mexican–American War carried out by the United States in Alta California (modern-day California), t ...

, and General

returned to Mexico afterward. Three days after the battle, on January 12, the last significant group of residents surrendered to U.S. forces. The conquest and annexation of

Alta California Alta California ('Upper California'), also known as ('New California') among other names, was a province of New Spain, formally established in 1804. Along with the Baja California peninsula, it had previously comprised the province of , but ...

was settled with the signing of the

Treaty of Cahuenga The Treaty of Cahuenga ( es, Tratado de Cahuenga), also called the Capitulation of Cahuenga (''Capitulación de Cahuenga''), was an 1847 agreement that ended the Conquest of California, resulting in a ceasefire between Californios and Americans. T ...

U.S. Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cl ...

Lieutenant-Colonel Lieutenant colonel ( , ) is a rank of commissioned officers in the armies, most marine forces and some air forces of the world, above a major and below a colonel. Several police forces in the United States use the rank of lieutenant colo ...

John C. Frémont John Charles Frémont or Fremont (January 21, 1813July 13, 1890) was an American explorer, military officer, and politician. He was a U.S. Senator from California and was the first Republican nominee for president of the United States in 1856 ...

and Mexican General

Andrés Pico Andrés Pico (November 18, 1810 – February 14, 1876) was a Californio who became a successful rancher, fought in the contested Battle of San Pascual during the Mexican–American War, and negotiated promises of post-war protections for Calif ...

on January 13, 1847. The site of the battle is now registered as

California Historical Landmark A California Historical Landmark (CHL) is a building, structure, site, or place in California that has been determined to have statewide historical landmark significance. Criteria Historical significance is determined by meeting at least one of ...

#167. The marker is located at 4490 Exchange Avenue at Downey Road in Vernon.

California Historical Landmark Marker

Marker NO. 167 at the site reads:californiahistoricallandmarks.com 167 , Battle of La Mesa
/ref> *''NO. 167 LA MESA BATTLEFIELD - La Mesa Battlefield served as a campsite for the California forces under General Castro in the summer of 1846, during the United States' occupation of California in the Mexican War. The battle of La Mesa, last military encounter of the war on the California front, was fought here January 9, 1847.''

Background

Battle

Aftermath

California Historical Landmark Marker

See also

References

Further reading