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| | Spirit Mound Historic Prairie near Vermillion, South Dakota |
 | | On August 25, 1804, while the rest of the expedition went on up the river, Captains Lewis and Clark took several men and Lewis' dog, Seaman, on a nine mile walk to Spirit Mound. |
 | | Seaman, suffering from the heat, had to be sent back to the Vermillion River. |
 | | Through the cooperation of the Spirit Mound Trust, National park Service, SD Parks and Wildlife Foundation, and South Dakota Department of Game, Fish and Parks this 320 acres became part of the state park system in 2001. |
| www.sdgfp.info /parks/Regions/Heartland/SpiritMound.htm (297 words) |
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