Share article to Fremont County is named for John C. Fremont, an American explorer who led several expeditions in search of railroad routes through Colorado during the mid-nineteenth century. Map: Image by: Menchaca, JuanSource: SYMBOL OF THE AMERICAN WEST, KIT CARSON, DIED 147 YEARS AGO THIS WEEK IN COLO...Copyright Notes: Image courtesy of History Colorado/Scan #10028315.