Historic Sites
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Bruguier's Cabin
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Central High School/Castle on the Hill
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City Halls of Sioux City
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First Brides Grave
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First Schools in Sioux City
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Floyd Monument
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Grandview Park & the Band Shell
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Historic Fourth Street
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Peirce Mansion
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Prospect Hill
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Riverside Park Area
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Sgt. Floyd River Museum & Welcome Center
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South Bottoms Memorial
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War Eagle
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Woodbury County Courthouses
Floyd MonumentThe night of August 19th 1804, as the explorers reached the area just south of Sioux City, Floyd became seriously ill with "bilous cholic". Although expedition leaders did everything they could to help the young soldier, Floyd became weaker. At the last, he told Captain Clark, "I'm going away and I want you to write me a letter." He died sometime after 2:00 in the afternoon on Monday, August 20, 1804.
![]() In 1894, Floyd's Journals of the Lewis and Clark Expedition were rediscovered, renewing interest in the young soldier and his gravesite. However, for nearly forty years cattle had trampled the grave and souvenir hunters had carved away the wooden markers. It took considerable searching, but the grave was rediscovered on Memorial Day 1895. His remains were placed in two earthenware urns and reburied again on August 20, 1895. The citizens held a special re-interment service. This time a marble slab, four feet by eight, was placed over the grave. The Floyd Memorial Association was also formed in 1895 for the purpose of honoring Sergeant Floyd in a more fitting way, with a permanent monument in his memory. The Memorial Association secured $13,400 from the United State Government, the state, the county and other private sources. Colonel Chittenden of the United States Engineer's Office in Sioux City, donated his services. The railroads even transported the materials free of charge. Construction of the monument took about a year. The foundation was laid May 29, 1900. The cornerstone was laid with a great deal of ceremony on August 20, 1900, on the ninety-sixth anniversary of Floyd's death. The umbrellas in the photograph are for protection from the heat. The Floyd Monument is an Egyptian-style obelisk, 100 feet high and built of Kettle River sandstone. It is capped with aluminum connected to copper grounding wires as protection from lightning strikes. It has a solid concrete core in which Floyd's remains are sealed.
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It is now believed that what was described as "bilous colic" was likely appendicitis. At that time in history, there was no cure for that disorder, and Floyd would likely have died even in the best hospital.






