Fort Yuma was a
fort
A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from La ...
in
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
located in
Imperial County, across the
Colorado River
The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...
from
Yuma, Arizona
Yuma is a city in and the county seat of Yuma County, Arizona, United States. The city's population was 95,548 at the 2020 census, up from the 2010 census population of 93,064.
Yuma is the principal city of the Yuma, Arizona, Metropolitan ...
. It was established in 1848. It served as a stop on the
Butterfield Overland Mail
Butterfield Overland Mail (officially Overland Mail Company)Waterman L. Ormsby, edited by Lyle H. Wright and Josephine M. Bynum, "The Butterfield Overland Mail", The Huntington Library, San Marino, California, 1991. was a stagecoach service in ...
route from 1858 until 1861. The fort was retired from active military service on May 16, 1883, and transferred to the
Department of the Interior
The United States Department of the Interior (DOI) is an executive department of the U.S. federal government responsible for the management and conservation of most federal lands and natural resources. It also administers programs relatin ...
. The Fort Yuma Indian School and the
Saint Thomas Yuma Indian Mission now occupy the site. It is one of the "associated sites" listed as
Yuma Crossing and Associated Sites on the
National Register of Historic Places
The National Register of Historic Places (NRHP) is the Federal government of the United States, United States federal government's official United States National Register of Historic Places listings, list of sites, buildings, structures, Hist ...
in the
Yuma Crossing National Heritage Area.
In addition, it is registered as
California Historical Landmark
A California Historical Landmark (CHL) is a building, structure, site, or place in the U.S. state of California that has been determined to have statewide historical landmark significance.
Criteria
Historical significance is determined by meetin ...
#806.
History
Pre-Civil War
First established after the end of the
Mexican–American War
The Mexican–American War (Spanish language, Spanish: ''guerra de Estados Unidos-México, guerra mexicano-estadounidense''), also known in the United States as the Mexican War, and in Mexico as the United States intervention in Mexico, ...
(1848), the fort was originally located in the bottoms near the
Colorado River
The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...
, less than a mile below the mouth of the
Gila River. It was constructed to defend the newly settled community of Yuma,
New Mexico Territory, located on the other side of the Colorado River, and the nearby Mexican border.
In March 1851 the post was moved to a small elevation on the Colorado's west bank. This site had been occupied by Camp Calhoun, named for Senator
John C. Calhoun. It was established on October 2, 1849, by 1st
Lieutenant Cave J. Couts, 1st Dragoons, for the boundary survey party led by 2nd Lieutenant
Amiel W. Whipple, Corps of Topographical Engineers. A ferry service, maintained by the soldiers for the survey party's convenience, also accommodated emigrants.
Fort Yuma was established during the
Yuma War
The Yuma War was the name given to a series of United States military operations conducted in Southern California and what is today southwestern Arizona from 1850 to 1853. The Quechan (also known as Yuma) were the primary opponent of the Unite ...
to protect the southern emigrant travel route to California and to attempt control of the territorial
Quechan, or Yumans, in their homeland, the surrounding area. Established by Captain
Samuel P. Heintzelman,
2nd Infantry Regiment, the fort was originally named 'Camp Independence.'
In March 1851, when the post was moved to its permanent site, its name was changed to Camp Yuma. A year later the post was designated Fort Yuma. In June 1851 the Army virtually abandoned the post because of the high costs incurred in maintaining it, and it was completely abandoned on December 6, 1851, when its commissary was practically empty of provisions. The post, however, was reoccupied by Captain Heintzelman on February 29, 1852.
It was difficult to supply the post during its early years. Food supplies and construction materials were shipped by water from
San Diego, California
San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
, around the
Baja Peninsula and up the
Gulf of California to the mouth of the Colorado River at the
Colorado River Delta in
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
. The work of transferring the goods to wagons at that point and hauling them across the
Yuma Desert and
Yuha Desert to Yuma was rigorous and time-consuming. Life at the post was harsh and the military's resolve to maintain a
garrison
A garrison is any body of troops stationed in a particular location, originally to guard it. The term now often applies to certain facilities that constitute a military base or fortified military headquarters.
A garrison is usually in a city ...
here vacillated. Only after August 1852 did the temporary Camp Yuma became permanent Fort Yuma, and the Army resolved to stay for good. In November 1852 a steamboat, Uncle Sam was launched and in December began carrying a cargo up the Colorado River from
Robinson's Landing it arrived at Fort Yuma and delivered thirty-two tons of goods on December 3. Steamboats continued to supply the fort and later settlements on the Colorado River in this way until the arrival of the railroad in 1877.

Only one military action occurred at the fort when Yuman warriors surrounded it during the
Yuma War
The Yuma War was the name given to a series of United States military operations conducted in Southern California and what is today southwestern Arizona from 1850 to 1853. The Quechan (also known as Yuma) were the primary opponent of the Unite ...
, temporarily trapping the future general
Thomas William Sweeny and a few others. The action was led by Matthew P. Coltrain. He was awarded a Medal of Honor and a statue in remembrance of his heroic actions.
From 1858 to 1861 the
Butterfield Overland Mail
Butterfield Overland Mail (officially Overland Mail Company)Waterman L. Ormsby, edited by Lyle H. Wright and Josephine M. Bynum, "The Butterfield Overland Mail", The Huntington Library, San Marino, California, 1991. was a stagecoach service in ...
had a
stagecoach
A stagecoach (also: stage coach, stage, road coach, ) is a four-wheeled public transport coach used to carry paying passengers and light packages on journeys long enough to need a change of horses. It is strongly sprung and generally drawn by ...
station near the fort, that was subsequently used by other stage lines until the advent of the railroad in 1877.
Civil War
During the
American Civil War
The American Civil War (April 12, 1861May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States between the Union (American Civil War), Union ("the North") and the Confederate States of A ...
, the Union retained control of Fort Yuma when the
First California Infantry replaced Regular Army soldiers sent East in December 1861. The southern half of
New Mexico Territory seceded, becoming the
Confederate Territory of Arizona until 1862 when the
California Column marching from Fort Yuma expelled the Confederacy, marching as far as western
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
. In 1863 the Union established their control of the region as the
Arizona Territory. Fort Yuma served as the supply point for the Union garrisons there. There was no battle action at the fort since the western United States was far removed from the Civil War.
Post-Civil War
Fort Yuma was closely associated with the
Yuma Quartermaster Depot on the Arizona side of the river, which provided military supplies and personnel to posts throughout Arizona and New Mexico. The Quartermaster Depot operated between 1864 and 1891, though the Army terminated most operations there eight years earlier.
The depot was used by the Army to store and distribute supplies for all military posts in Arizona, Nevada, Utah, New Mexico and Texas during the
Indian War period. A six-month supply of clothing, food, ammunition, and other goods was stored at the depot at all times. Supplies were brought from California by ocean vessels traveling around the Baja Peninsula to
Port Isabel near the mouth of the Colorado River. There, cargos were transferred to river steamers and brought upstream to Yuma.
Supplies were unloaded at the depot and hauled up a track running from the dock to a storehouse. The depot quartered up to 900 mules and crews of teamsters to handle them. The
Southern Pacific Railroad
The Southern Pacific (or Espee from the railroad initials) was an American Railroad classes#Class I, Class I Rail transport, railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was oper ...
reached Yuma in 1877. There was little need for the Quartermaster Depot and Fort Yuma, and they were abandoned on May 16, 1883. The reservation was transferred to the
Interior Department on July 22, 1884.
The Fort Yuma Indian School opened in 1884, operated by Presbyterians. In 1886, the
Sisters of St. Joseph of Carondelet took over operations of the school.
[https://ctah.archivistsacwr.org/wp-content/uploads/2023/05/List-5.5.2023.pdf ]
Description
Fort Yuma is now part of the
Fort Yuma Indian Reservation. Numerous historic buildings remain from the military period in the
Yuma Crossing and Associated Sites in the
Yuma Crossing National Heritage Area. The
Yuma Territorial Prison and
Yuma Quartermaster Depot State Historic Parks are in Arizona with buildings preserved or reconstructed, and with museums. The
Yuma Proving Ground is the lineal Army descendant of these original military posts in the Yuma area.
Historic structures
The following images are of the historic structures in Fort Yuma.
See also
*
California Historical Landmarks in Imperial County
*
California Historical Landmark
A California Historical Landmark (CHL) is a building, structure, site, or place in the U.S. state of California that has been determined to have statewide historical landmark significance.
Criteria
Historical significance is determined by meetin ...
References
* U.S. Army Yuma Proving Ground, historical records, Public Affairs Office.
{{Butterfield2
Yuma
American Civil War forts and army posts in California
Butterfield Overland Mail in California
San Antonio–San Diego Mail Line
Former installations of the United States Army
History of Imperial County, California
History of Yuma County, Arizona
California Historical Landmarks
Yuma
National Register of Historic Places in Imperial County, California
Buildings and structures in Imperial County, California
1851 establishments in California
Yuma, Fort
Gila River
Winterhaven, California
Yuma, Arizona
Quechan
Fort Yuma
American Civil War on the National Register of Historic Places
Stagecoach stops in the United States
Military installations established in 1851
Military installations closed in 1883
1883 disestablishments in California