French jurisdiction (1686–1763) First location The Arkansas Post was founded in the summer of 1686 by Henri de Tonti, Jacques Cardinal, Jean Couture,
Peter Bisaillon, and three other Frenchmen as a trading post near the site of a Quapaw village named
Osotouy. It was about 35 miles upriver from the strategically significant confluence of the
Arkansas River with the
Mississippi River. The post was established on land given to De Tonti for his service in
René-Robert Cavelier, Sieur de La Salle's 1682 expedition. The French came to an arrangement with the local Quapaw to trade French goods for
beaver furs. This arrangement did not yield much profit, as the Quapaw had little interest in hunting beaver. But the trade and friendly relations with the Quapaw and other local native peoples, such as the
Caddo and
Osage, were integral to the post's survival for most of its operations. Here the French conducted the first documented Christian services in Arkansas.
Second location (Red Bluff) As a result of the Chickasaw raid and continued threats of attack, commander Ensign Louis Xavier Martin de Lino moved the post upriver. This was further from the Chickasaw territory east of the Mississippi, and closer to the Quapaw villages, the post's main trading partners and potential allies. This new location, about 45 miles from the mouth of the Arkansas, was called
Écores Rouges (Red Bluff), at "the heights of the Grand Prairie". It was situated on a bend in the river, on higher ground than the previous site. The majority of the post's population remained French. This reality complicated Spain's effort for diplomacy. In 1772, Commander Fernando de Leyba was ordered to assert dominance over the local French and to reduce the amount of feasts and gifts they provided for the local Quapaw, as it was costing the colonial government too much. The Quapaw nearly came to blows with the Spanish, but eventually Commander Leyba conceded to previous practice and restored the goods, and conflict was avoided. Fort Carlos III suffered from constant river erosion, so the Spanish relocated the military garrison to a site about half a mile from the waterfront and, in March 1791, built Fort San Estevan (renamed Fort Madison after the
Louisiana Purchase). Fort San Estevan included a commandant's house, large barracks, storehouse and kitchen, all surrounded by a stockade. In 1805, the U.S. government built a
federal trading house at the north end of the post, operated by Jacob Bright. The location became a major
frontier post for travelers heading west, with explorers such as
Stephen Harriman Long and
Thomas Nuttall passing through, although the government closed the federal house in 1810. The Union victory relieved much of the harassment by Confederate forces on the Mississippi and contributed to the eventual
victory at
Vicksburg, Mississippi. During the period of Confederate control, the state bank building was used as a hospital. Parts of the Confederate road, trenches, and artillery positions built at the post during this era are still visible at the memorial site. ==Description and administrative history==