Zebulon Pike
In early November 1806, Pike and his team sighted and tried to climb to the summit of the peak later named after him (Pikes Peak). They made it as far as Mt. Rosa, located southeast of Pikes Peak, before giving up the ascent in waist-deep snow. They had already gone almost two days without food.
Pike Expedition
The Pike Expedition (July 15, 1806 – July 1, 1807) was a military party sent out by President Thomas Jefferson and authorized by the United States government to explore the south and west of the recent Louisiana Purchase. Roughly contemporaneous with the Lewis and Clark Expedition, it was led by United States Army Lieutenant Zebulon Pike, Jr. who was promoted to captain during the trip. It was the first official American effort to explore the western Great Plains and the Rocky Mountains in present-day Colorado. Pike contacted several Native American tribes during his travels and informed them of the new US rule over the territory. The expedition documented the United States' discovery of Pikes Peak. After splitting up his men, Pike led the larger contingent to find the headwaters of the Red River. A smaller group returned safely to the US Army fort in St. Louis, Missouri before winter set in.