Note II-1 — Chapter II · ITINERARY, CONTINUED: FROM THE PAWNEE VILLAGE THROUGH KANSAS AND COLORADO TO PIKE'S PEAK, OCT. 1ST-NOV. 30TH, 1806.
Reading edition
On the other hand, Lewis and Clark first heard of Pike's expedition on Sept. 10th, 1806, when they were nearing the Big Nemaha on their way down the Missouri, and met a boat with a trader bound for the Pawnee Loups: see L. and C., p. 1206.