On State Highway 162 near Yellow Bird Road, on the right when traveling west.
Most of Camas Prairie's wind blown soil rests upon Columbia River lava flows. Coming from a series of widespread eruptions, they covered older, eroded granite rocks here some 6 to 17 million years ago.
Some earlier volcanic extrusions, . . . — — Map (db m140897) HM
On Oak Street (State Highway 162) at 6th Avenue, on the left when traveling north on Oak Street.
On their eastbound journey, the Corps of Discovery and several Nez Perce reached the Nezperce Prairie from present-day Peck on May 8, 1806, and camped on "a Small hansom Stream".
On May 9 the party arrived at the root-digging camp of . . . — — Map (db m140898) HM
