John Charles Frémont (1813–90) was an American explorer and cartographer for the US Topographical Engineers who crossed Colorado on various expeditions. Between 1842 and 1853, Frémont led five western expeditions with numerous objectives. He was…

Sedgwick County covers 549 square miles in the northeastern corner of Colorado. It was established in 1889 and named for Fort Sedgwick. Straddling the South Platte River, the county is bordered by Nebraska’s Deuel and Perkins Counties to the north and…