Analysis of information sources in references of the Wikipedia article "Zebulon Pike" in English language version.
Alas, Collot was not very secretive. Before he left Pittsburgh on his journey, American authorities discovered his mission and shadowed him. Zebulon Pike, a U.S. Army officer who would later become an explorer and the namesake of Pike's Peak in Colorado, arrested Collot at Fort Massac near what is now Metropolis, Ill., but had no legal grounds to detain him.
{{cite book}}
: CS1 maint: location missing publisher (link)[page needed]