 In less than a year, Shoshone County contained additional settlements at Lewiston, Elk City, Newsome, and Florence.On December 20, 1861, Nez Perce and Idaho counties were created from most of the original territory of Shoshone County.On the following day, Shoshone's boundaries were shifted northward, containing most of present-day Clearwater County and a portion of present-day Shoshone County.