Editing Billings, Montana (section)

===Lewis and Clark Expedition===
In July 1806, [[William Clark]] (of the [[Lewis and Clark Expedition]]) passed through the Billings area. On July 25 he arrived at what is now known as [[Pompeys Pillar National Monument|Pompey's Pillar]] and wrote in his journal "... at 4 P M arrived at a remarkable rock, i ascended this rock and from its top had a most extensive view in every direction."<ref>{{cite web|title=The Journals of Lewis and Clark, 1804–1806|url=http://www.gutenberg.org/files/8419/8419-h/8419-h.htm#link32H_4_0351|publisher=Project Gutenburg|access-date=February 26, 2013|author=Meriwether Lewis and William Clark}}</ref> Clark carved his name and the date into the rock, leaving the only remaining physical evidence of their expedition. He named the place Pompey's Tower, naming it after the son of his [[Shoshone]] interpreter and guide [[Sacajawea]]. In 1965, Pompey's Pillar was designated as a national historic landmark, and was proclaimed a national monument in January 2001. An interpretive center has been built next to the monument.<ref>{{cite web|title=Pompeys Pillar National Monument|url=http://www.blm.gov/pgdata/content/mt/en/fo/billings_field_office/pompeyspillar.html|publisher=Bureau of Land Management|access-date=February 26, 2013|archive-url=https://web.archive.org/web/20130316083125/http://www.blm.gov/pgdata/content/mt/en/fo/billings_field_office/pompeyspillar.html|archive-date=March 16, 2013|url-status=dead}}</ref>