who described it?
Naturalist Hugh Falconer
Columbian mammoth
The Columbian mammoth was first scientifically described in 1857 by naturalist Hugh Falconer, who named the species "Elephas columbi" after the explorer Christopher Columbus. 
where could you find columbian mammoth? North America to Costa Rica
wiki:12737542
Columbian mammoth [SEP] Taxonomy
The Columbian mammoth was first scientifically described in 1857 by naturalist Hugh Falconer, who named the species "Elephas columbi" after the explorer Christopher Columbus. The animal was brought to Falconer's attention in 1846 by Charles Lyell, who sent him molar fragments found during the 1838 excavation of the Brunswick–Altamaha Canal in Georgia, in the southeastern United States. At the time, similar fossils from across North America were attributed to woolly mammoths (then "Elephas primigenius"). Falconer found that his specimens were distinct, confirming his conclusion by examining their internal structure and studying additional molars from Mexico. Although scientists William Phipps Blake and Richard Owen believed that "E.