California's involvement in the American Civil War included sending gold east to support the war effort, recruiting volunteer combat units to replace regular U.S. Army units sent east, in the area west of the Rocky Mountains, maintaining and building numerous camps and fortifications, suppressing secessionist activity and securing the New Mexico Territory against the Confederacy. The State of California did not send its units east, but many citizens traveled east and joined the Union Army there, some of whom became famous.
The Pacific coast theater of the American Civil War consists of major military operations in the United States on the Pacific Ocean and in the states and Territories west of the Continental Divide. The theater was encompassed by the Department of the Pacific that included the states of California, Oregon, and Nevada, the territories of Washington, Utah, and later Idaho.
The 4th California Infantry was a volunteer infantry regiment recruited from northern California during the American Civil War. It was organized at Sacramento, Placerville, and Auburn in September and October 1861.
The 1st Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States.
The Free Company of Volunteers of Catalonia was a military company of the Spanish Army serving in the Spanish colonial empire.
The Presidio of San Ignacio de Túbac or Fort Tubac was a Spanish built fortress. The fortification was established by the Spanish Army in 1752 at the site of present-day Tubac, Arizona. Its ruins are preserved in the Tubac Presidio State Historic Park.
Prior to the adoption of its name for a U.S. state, Arizona was traditionally defined as the region south of the Gila River to the present-day Mexican border, and between the Colorado River and the Rio Grande. It encompasses present-day Southern Arizona and the New Mexico Bootheel plus adjacent parts of Southwestern New Mexico. This area was transferred from Mexico to the United States in the Gadsden Purchase of 1853. Mining and ranching were the primary occupations of traditional Arizona's inhabitants, though growing citrus fruits had long been occurring in Tucson.
The Company A, Arizona Rangers was a cavalry formation of the Confederate States Army during the American Civil War.
The 2nd Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States. Organized at San Francisco and Carson City September 2, 1861, to December 30, 1862, and attached to Department of the Pacific. The regiment was first assembled at the Presidio, San Francisco, and after completing its organization, five companies were sent to Oregon and Washington Territory, to relieve the regular troops, and two companies were sent to Santa Barbara. The troops of this regiment sent to Oregon were afterwards returned to California. It was mustered out during the month of October, 1864.
The 1st Battalion of Native Cavalry, California Volunteers was a cavalry battalion in the Union Army during the American Civil War. Recruits were largely drawn from the Californio population, though its ranks included Yaqui and Mission Indians as well as immigrants from Mexico, Hispano America and Europe. In addition to its ethnic makeup, the Battalion is also considered unusual for being one of the few lancer units in the United States Army.
The 5th Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States, attached to the Department of the Pacific and Department of New Mexico.
The 6th Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States attached to the Department of the Pacific. The Regiment was organized at Benicia Barracks, San Francisco on February 1, 1863. 6th Regiment mustered out from October 25 to December 20, 1865. The only recorded engagements of the Regiment occurred with the detachment sent to the Humboldt Military District in 1864, near the end of the Bald Hills War. It had engagements with the Indians in the Skirmish at Booth's Run, May 1 and Kneeland's Prairie May 2, near Boynton's Prairie May 6 and at Grouse Creek May 23.
The 1st Battalion of California Veteran Infantry was a California Volunteer infantry battalion in the Union Army during the American Civil War. It spent its entire term of service in the western United States.
Clarence Edmund Bennett (1833–1902), usually referred to as Clarence E. Bennett, a graduate of West Point, a career American Army officer who saw duty almost exclusively in Western frontier assignments, served in the American Civil War in California, New Mexico and Arizona Territories and later in Reconstruction occupation forces and frontier duty during the later Indian Wars.
Presidio San Agustín del Tucsón was a presidio located within Tucson, Arizona, United States. The original fortress was built by Spanish soldiers during the 18th century and was the founding structure of what became the city of Tucson. After the American arrival in 1846, the original walls were dismantled, with the last section torn down in 1918. A reconstruction of the northeast corner of the fort was completed in 2007 following an archaeological excavation that located the fort's northeast tower.
The Presidio de Calabasas, also known as Fort Calabasas or Camp Calabasas, was a stone fortress built by Mexico in 1837 south of Tumacacori, Arizona. It was built on the land of the Grant of Manuel María Gándara, by Gándara to protect his lands near the Mission San Cayetano de Calabazas from the Apache. Civilians established a small farming settlement called Calabasas, in the area nearby the protection of the Presidio.
Edwin Augustus Rigg (1822–1882), 49er, was a military officer in the American Civil War and the Apache Wars.
Following the Gadsden Purchase, the United States Army sent Major Enoch Steen and four companies of the 1st U. S. Dragoons to occupy the former site of the Mexican Presidio de Calabasas. Major Steen arrived on November 27, 1856, and named his post Camp Moore. The dragoons put roofs on the old adobe structures and added a few new ones. Camp Moore was abandoned in March 1857 after another location in the San Rafael Valley was chosen for a permanent fort that was christened Fort Buchanan.
Calabasas is a former populated place or ghost town, within the Census-designated place of Rio Rico, a suburb of Nogales in Santa Cruz County, Arizona.
Joseph D. Leitch was a career officer in the United States Army.
