The Long Expedition
From American Journeys
Major Stephen H. Long was commissioned to ascend the Platte River and explore the headwaters of both the Red River and Arkansas River. The expedition followed the Platte River to the South Fork to the Colorado Rockies, where they discovered and named Long's Peak. On July 5, 1820, they reached present day Denver and on July 12, Colorado Springs, from which three party members, including Edwin James, set out to climb Pike's Peak.
The party continued south to the upper Arkansas River, where Long divided it into two groups. One group was instructed to continue the exploration of the Arkansas while the second group, which included both Long and James, went to explore the Red River. In early August the party followed the Canadian River, mistaking it for the Red. This mistake led the group into New Mexico and the Texas panhandle, where they suffered from a scarcity of food sources. The expedition also encountered a party of Kiowa-Apaches, the first recorded meeting between Anglo-Americans and Kiowa-Apaches. The group traveled through Oklahoma and finally reunited with the others at Fort Smith, Arkansas.
The expedition ended with neither of its main objectives met. Neither the source of Arkansas nor the Red River was found. The geographic details of the "Great American Desert" were hardly what an expansionist government wanted to hear about. But the Long Expedition was the first scientific survey of the region and dramatically increased the country's geographical knowledge of the West.
An interesting account of the Long Expedition, including a short video can be found at Nebraskastudies.org.

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