Cold Case Files: treasure hunters have been chasing the legend of the Lost Louisiana Mine since 1778
In the rugged folds of the Ouachita Mountains, where the Little Missouri River cuts through what is now Pike County and the headwaters of the Ouachita River drain the eastern edge of Montgomery County, Spanish and French colonial accounts once spoke of abandoned gold diggings.
Lieutenant Governor Francisco Bouligny reported in 1778 on workings along the upper Little Missouri that had been deserted. Chevalier Charles François Adrien Le Paulmier D’Annemours, the former French consul general, recorded in his 1803 Mémoire on the Ouachita district that an expedition had reached the site roughly forty years earlier, recovered rich mineral, and then abandoned the effort because of suffocating vapors or fear of Osage raiders.
William Dunbar, exploring the region in 1804, noted that local hunters had mistaken pyrite for gold along the same stream. Those sparse colonial observations, filtered through the anti-Spanish bias later called the Black Legend, hardened over generations into a tale of a Spanish party that located a rich vein deep in the wilderness of Spain’s Louisiana colony, concealed the workings, and were nearly wiped out by Indians on the return to New Orleans, leaving only one survivor who knew the way back.
The name Lost Louisiana Mine first appeared in print in 1880 in the Arkansas Mining Journal published at Mount Ida in Montgomery County. The article referenced an 1803 French report of mines lying between the Ouachita and Little Missouri rivers, the same territory D’Annemours had described. That same year pulp writer James W. Buel carried a version of the story into his book The Legends of the Ozarks.
The timing was not accidental. From roughly 1876 to 1882 a silver boom had swollen the crossroads settlement of Silver City in eastern Montgomery County, on Gap Creek east of the present townsite. Prospecting for lead and silver had begun in the area before 1840; word of richer finds drew displaced miners from Colorado and California after 1874.
By 1880, Silver City claimed more than a thousand residents. Among the more notable operations were the Minnesota mine owned by Joseph “Diamond Jo” Reynolds, the riverboat operator who also built the Hot Springs Railroad, and the Walnut mine worked by Elliott R. Moffet, the Joplin smelter owner who had served as that Missouri city’s first mayor.
Most of the hundreds of claims produced little, and the boom collapsed by the end of 1882. Abandoned shafts and hopeful promoters remained, along with a public ready to believe the real prize had simply been missed.
The railroad Reynolds completed into the Ouachitas helped move capital and newspapers into the region. Attention shifted a short distance east to the Bear Mountain area in what was then still part of Montgomery County (later transferred to Garland County). Rumors of gold circulated by 1884.
A stereoscopic photograph taken in 1885 by J. F. Kennedy already labels a shaft near Bear as the Lost Louisiana Mine. In 1886 promoters organized the Lost Louisiana Mining Company around an extinct hot spring and began selling stock, declaring the site the fabulous lost Spanish workings.
The town of Bear, platted in 1884, exploded. By 1887 thirty-five mining companies operated in the district; the Garland County Silver Mining Company alone issued more than 200,000 shares valued at five million dollars. Bear supported five hotels, two newspapers (the Bear City Times and another Arkansas Mining Journal), sawmills, saloons, a Masonic lodge, subscription schools, and a telephone exchange.
Population estimates at the peak ranged from 1,200 to 5,000.
Investment was driven in part by assayers whose results proved unreliable. Reverend Samuel Aughey, a disgraced former professor and territorial geologist, and Anson C. Tichenor, an itinerant figure who had bilked investors across western states, produced assays claiming substantial gold values from Bear ore.
In April 1888 a party brought forty-six pounds of supposed Lost Louisiana ore to St. Louis for independent testing under observation. Controlled assays by Aughey and his associate A. M. Beam yielded only traces of gold except in two runs that produced eight and eleven-point-six ounces per ton, results that did not hold under scrutiny.
State geologist John Casper Branner assigned Theodore B. Comstock to examine the Ouachita claims. Comstock’s 1888 report for the Arkansas Geological Survey found no evidence of gold or silver in commercial quantities at the Lost Louisiana, Golden Wonder, Silver World, Mozambique Tunnel, or other celebrated Bear properties.
The rock contained manganese oxide rather than precious metal. Branner was hanged in effigy in Bear, but stock values collapsed, mines closed, and the town emptied. By 1892 only about 120 residents remained. Ruins of Bill Thompson’s Lost Louisiana workings were still visible near Bear in 1899.
The legend did not die. By 1900 searchers had carried it into the Ozark Mountains. Older accounts of Mexican parties working near the Mulberry River in the Boston Mountains in the 1830s had already inspired Friedrich Gerstäcker’s 1844 story of a silver mine in the Ozarks. In the 1890s an elderly man calling himself Antonio Montez claimed maps from Mexican president Porfirio Díaz and pointed to petroglyphs on a bluff along the Mulberry near Cass in Franklin County.
In 1905, Dr. Lorenzo G. Hill of Mulberry began buying land and spent roughly two decades and an estimated one hundred thousand dollars pursuing the site.
Newspapers in 1907 described the markings as Native American, Spanish, and Masonic clues to an eighty-million-dollar Masonic treasure; later accounts expanded the cache to include gem-encrusted gold platters, a gold Madonna, and one hundred ten million dollars in Aztec gold.
Charlie Gonzales directed excavations until he was dismissed as a fraud. The Lost Louisiana Mining and Development Company of Poteau, Oklahoma, was chartered in 1908, and the Lonquil Mining Company of Fort Smith in Sebastian County followed in 1909. Arkansas’s 1915 blue-sky law curtailed the worst of the speculative stock sales.
Hill died in 1926 after an arrest for selling narcotics, ending his long obsession. Later treasure writers and local storytellers continued to place versions of the mine along the Cossatot, near Smoke Rock Creek, or in other Ouachita drainages, sometimes citing old tools or Spanish hammers of uncertain provenance.
No verified Spanish gold mine has ever been located in the Ouachitas or Ozarks. The colonial reports appear to have described limited or abandoned prospecting, and nineteenth-century assays repeatedly confused pyrite or barren rock with precious metal.
What Montgomery County and the surrounding Ouachita's actually contain in abundance is clear quartz crystal, the resource that later earned Mount Ida the title Quartz Capital of the World. Public digs on Fisher Mountain, at Twin Creeks, Wegner’s, and other sites still draw visitors who keep what they find.
The Lost Louisiana Mine remains a story of colonial rumor, Gilded Age promotion, and the enduring willingness of searchers to believe that the mountains of Montgomery, Garland, and Franklin counties still conceal a fortune that earlier parties simply failed to recover.
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