In 1804-06, Captains Meriwether Lewis and William Clark led about 40 soldiers and boatmen on an epic journey. President Thomas Jefferson commissioned this "Corps of Discovery" to find a route to the Pacific Ocean through the newly acquired . . . — — Map (db m114092) HM
The Corps of Discovery descended the Columbia River in five dugout canoes made from pines felled at the mouth of the North Fork of the Clearwater River in Idaho.
Before McNary Dam harnessed this segment of the mighty Columbia, the river plunged . . . — — Map (db m114089) HM