Northern Prairie Wildlife Research Center
After members of the party had been charged by several wounded bears that required up to 10 rifle balls to kill, Lewis finally admitted "...I must confess that I do not like the gentlemen and had reather fight two Indians than one bear."
Grizzly bear were apparently found throughout the state, particularly in the forested bottoms along the major rivers, with bear numbers apparently highest in the western third of the state. Their decline seems to have started after 1850 when better large bore rifles became more common. By 1880 the grizzly was a rare sight. The last documented reports of this animal date from 1889 when tracks and other sign were found along the Little Missouri River.