Up until recently, in the nearly 8,000 miles Lewis and Clark traveled during their exploration of the Missouri River and beyond, both heading west and returning, there had been only one confirmed bit of physical evidence to verify the Corps of Discovery’s exact presence. On July 25, 1806, Captain William Clark carved his name and the date in the soft sandstone face of Pompey's Pillar, a 200-foot- high outcropping on the south banks of the Yellowstone River east of Billings. After committing this act of historic graffiti, he noted the event in his Journal and named the site after Sacajawea’s toddler son Baptiste whom the men of the Corps affectionately called Pomp. Recently, though, a find at the site of "Travellers Rest" at Lolo, Montana became the second such substantiation. September 9 -11, 1805 before heading west over the Bitterroot Mountains and again on their return journey from the Pacific on June 30 - July 3, 1806, the explorers camped there. To be continued in Part 2.