A few miles north is Ft. Atkinson (1819-27), the first U.S. military post west of the Missouri River. The forts location at the Council Bluff was recommended by Lewis and Clark in 1804. It was established to assert U.S. influence over the . . . — — Map (db m287989) HM
From 1820 to 1827, the nation's largest and most westerly military post occupied this site, the earlier scene of Lewis and Clark's Council Bluff. In late 1819, troops under Colonel Henry Atkinson established Cantonment Missouri along the river near . . . — — Map (db m223480) HM
Civilization came to the west bank of the Missouri with establishment of Fort Atkinson in 1820 about a half mile southeast of here. Named after its founder, General Henry Atkinson, this western-most Fort protected the frontier's developing commerce. . . . — — Map (db m7890) HM