El Pueblo Museum, Pueblo, Colorado.
Fort Pueblo, Colorado, a non-military establishment, was a trading post also referred to as El Pueblo.
Traders George Simpson and Robert Fisher established the post at the confluence of the Arkansas River and Fountain Creek in Colorado in 1842, after working at Bent’s Fort, about 70 miles downstream on the Arkansas River. Several other traders soon joined them, including Francisco Conn, Mathew Kinkead, Joseph Mantz, Joseph Doyle, and Alexander Barclay.
The trading post’s location was strategic: it sat on the Cherokee Trail and Trappers Trail, near the Santa Fe Trail, and was the closest U.S. settlement to Taos, New Mexico; the rivers also provided plenty of water for agriculture. Surviving records indicate that the trading post was probably an enclosed plaza with rooms arranged in a square around a central courtyard. Access to the plaza was through a large gate, with the rooms having no entry to the outside. This would have made the post easier to defend. It was large enough to hold as many as 100 people at any given time.
The forts’ owners and traders pooled their money and formed partnerships to operate the post. They primarily traded with the Ute and Apache Indians in the area, supplying the natives with sugar, cornmeal, flour, blankets, guns, coffee, and other trinkets in exchange for buffalo robes.
El Pueblo Trading Post in Pueblo, Colorado.
In the spring, several trappers would also bring their furs down from the mountains to sell to the proprietors of El Pueblo. Afterward, these independent trappers spent the summer loafing about the fort with their Indian or Mexican wives, leading some to describe a large part of Pueblo’s population at that time as renegades, outlaws, discharged soldiers, fugitives from justice, desperadoes, idlers, and loafers.
An agricultural community grew up around the post, and many people in the area sold their produce and livestock to emigrants along the trails. One of the most popular items sold was goat’s milk, and the trading post soon earned the nickname Milk Fort.
During this time, several noted mountain men and explorers visited the trading post, including Old Bill Williams, Kit Carson, Richens Lacy Wootton, and James Beckwourth. In June 1844, John C. Fremont passed by the trading post and noted: “It appeared in a thriving condition.”
However, that same year, George Simpson, Joseph Doyle, and Alexander Barclay established another trading post about 23 miles West of El Pueblo in a settlement known as Hardscrabble.
Trading with Native Americans.
In June 1845, Mexican trade restrictions prevented traders from getting goods from Taos, New Mexico, in Mexican territory. At that time, many of the traders left El Pueblo.
In the meantime, Andrew Drips, the Indian Agent on the Upper Missouri River, had long been trying to find the source of alcohol that was being traded with the Indians. In 1845, he blamed “a reckless band of desperadoes” who brought the dangerous stuff in from Mexico and “engaged in illicit and destructive trade with the Indians.” He identified these traders as being located at El Pueblo and Hardscrabble, Colorado.
In a letter to the Superintendent of Indian Affairs in St. Louis, Missouri, Drips said:
“I would particularly call the attention of the department to a description of traders who reside in the vicinity of the Mexican country on the waters of the Arkansas. They cultivate corn, etc., which they trade to the Indians for robes and skins, with which they proceed to Santa Fe and Taos and barter for whiskey, flour, etc. They again bring these latter articles to the Indians with whom they trade, in opposition to, and much to the detriment of, the licensed traders. They defy a United States agent, and a want of a proper force at the latter’s command permits them to act with impunity. They reside in two villages, one on the American and the other within the Mexican line. They are a mongrel crew of Americans, French, Mexicans, and half-breeds, and generally speaking, are unable to procure employment on account of past misconduct. In fact, they are no better than outlaws.”
The same year, Stephen Watts Kearny also recognized the source of the smuggled liquor and suggested that a sub-agent be stationed at Bent’s Fort, 70 miles below Pueblo. However, the Mexican-American War intervened, and nothing was done at this time. In the absence of any government agency to stop the illegal importation and trade of alcohol with the Indians, it continued.
In 1846, a colony of some 275 Mormons, mainly from Mississippi and parts of Alabama and Tennessee, wintered about one-half mile East of El Pueblo on the South side of the Arkansas River. The following May, they departed for Salt Lake City, Utah.
Thomas Fitzpatrick.
In 1847, Thomas Fitzpatrick, who had long worked in the fur trade and knew the inhabitants of Pueblo and Hardscrabble, became the Upper Arkansas River Indian agent. His report of September 1847 stated:
“About 75 miles above this place [Bent’s Fort], and immediately on the Arkansas River, there is a small settlement. The principal part is composed of old trappers and hunters; the male part is mostly Americans, Missouri French, Canadians, and Mexicans. They have a tolerable supply of cattle, horses, mules, etc., and I am informed that this year they have raised a good crop of wheat, corn, beans, pumpkins, and other vegetables. They number about 150 souls; of this number, about 60 are men, nearly all with wives, and some with two. These wives are of various Indian tribes, as follows: Blackfeet, Assiniboine, Arikara, Sioux, Arapaho, Cheyenne, Pawnee, Snake, Sinpach, Chinock, Mexicans, and Americans. The American women are Mormons; a party of Mormons having wintered there, and on their departure for California, left behind two families. These people are living in two separate establishments near each other; one is called Pueblo, and the other Hardscrabble. Neither village is fortified by a wall 12 feet high, composed of adobe. Those villages are becoming the resort of all idlers and loafers. They are also becoming depots for the smugglers of liquor from New Mexico into this country; therefore, they must be watched.”
By this time, the fur trade was declining, and during the Mexican-American War, trade between the United States and Mexico was suppressed. By 1849, the post was entirely abandoned.
After the Mexican-American War ended and the California Gold Rush began, Colorado saw more travelers and settlers. Mexican settlers took over El Pueblo in 1853.
Though the Ute Indians had signed a peace treaty in 1849, as more and more settlers moved into the area, the whites brought with them diseases, encroached upon their lands, and depleted the wild game, making hunting difficult. As a result, the angry Ute Indians and their Jicarilla Apache allies raided settlers and villages for food. Troops at Fort Massachusetts, Colorado, were tasked with stopping the raids, but it would take several years.
On Christmas Eve, in 1854, the Ute and Apache, led by the Ute Chief Tierra Blanca, attacked the Mexicans at El Pueblo, in what is known as the Fort Pueblo Massacre. During a celebration at the post, the traders let in about 50 Indians they thought were friendly. However, the Indians attacked, killing 15 men and kidnapping a woman and two boys. The soldiers at Fort Massachusetts were reinforced with troops from Fort Union, New Mexico, to permanently subdue the Indians, who were eventually forced to cede their lands in the San Luis Valley.
After the massacre, travelers and others in the area occasionally used the fort as a temporary shelter, but it never had any long-term occupants. As the old post began to crumble, settlers used the adobe bricks of the ruins for other purposes and soon built over it. Before long, a new settlement emerged, which people called Pueblo.
Today, the El Pueblo History Museum sits near the fort’s original site. The museum includes a replica of the old trading post and an archaeological excavation of the original 1842 El Pueblo trading post. The museum is located at 301 North Union, Pueblo, Colorado, and its phone number is 719-583-0453.
©Kathy Alexander/Legends of America, updated October 2026.
Also See:
Sources:
Colorado Encyclopedia
LeCompte, Janet S.; Colorado Magazine, Colorado State Historical Society, April 1854.