 lemhi county is a county located in the u.s. state of idaho. as of the 2010 census, the population was 7,936. the largest city and county seat is salmon. the county was established in 1869, named after fort lemhi (or limhi), a remote mormon missionary settlement from 1855-58 in bannock and shoshone territory."idaho for the curious", by cort conley, Â©1982, isbn 0-9603566-3-0, p.214-216 ==geography== according to the u.s. census bureau, the county has a total area of , of which  is land and  (0.1%) is water. it is the fourth-largest county in idaho by area. the highest point is bell mountain at  above sea level, and the lowest point is the salmon river as it exits on the county's western border with idaho county at approximately 3,000 feet (914 m). the river cuts through the center of lemhi county before turning west. the county's eastern border with beaverhead county, montana, is the continental divide. ===adjacent counties=== * idaho county - northwest * valley county - west * custer county - south * butte county - south * clark county - east * beaverhead county, montana - northeast * ravalli county, montana - north ===national protected areas=== * challis national forest (part) * salmon national forest (part) * targhee national forest (part) * frank churchâriver of no return wilderness (part) ==demographics== {{uscensuspop | 1870=988 | 1880=2230 | 1890=1915 | 1900=3446 | 1910=4786 | 1920=5164 | 1930=4
Idaho_counties Lemhi_County,_Idaho Populated_places_established_in_1869