Pike's 2nd Expedition – TX - Pike National Historic Trail Association
Pike's 2nd Expedition - Pike National Historic Trail Association
A salute to Pike (and his peak) – The Denver Post
Walking In Zebulon Pike's Footsteps - 5280
Follow The Explorers — Zebulon Montgomery Pike Trail to the sources of the Mississippi
Pike Expedition - Wikipedia
US Army Lt Zebulon Pike begins his now famous expedition from St.Louis in 1806, to explore the West in what is now called the Pike's Expedition that would explore the undocumented territory