Charles Marion Russell [Public domain], via Wikimedia Commons

Author: Lewis, Meriwether ; Clark, William ; Biddle, Nicholas ; Allen, Paul Date: 1814 Short Title: Map of Lewis and Clark's Track, Across the Western Portion of North America. Publisher: Philadelphia: Bradford and Inskeep Type: Book Map Obj Heig

By Creator:Edgar Samuel Paxson (Personal photograph taken at Montana State Capitol) [Public domain], via Wikimedia Commons

Courtesy Library of Congress, Rare Books and Special Collections, cph 3a19565

Courtesy Montana Historical Society

Courtesy Library of Congress