|Lower Cimarron Spring is nationally significant under Criteria A and D for its association with transportation and commerce along the Santa Fe Trail and for its potential to yield important information about this route. This site is also nationally significant under Criterion A in the area of social history for its association with the commemoration of the trail in Kansas. Located at the western end of La Jornada, this site retains a good degree of integrity in terms of location, setting, feeling, and association required for registration. Its period of significance begins with William Becknell's second trip to Santa Fe in 1822 and ends with the commemoration of this site in 1907 by the Kansas Society Daughters of the American Revolution. This site materially reflects important historic events outlined in the historic contexts: International Trade on the Mexican Road, 1821-1846; The Mexican-American War and the Santa Fe Trail, 1846-1848; Expanding National Trade on the Santa Fe Trail, 1848-1861; The Effects of the Civil War on the Santa Fe Trail, 1861-1865; The Santa Fe Trail and the Railroad, 1865-1880; and The Commemoration and Reuse of the Santa Fe Trail, as well as the Santa Fe Trail in Kansas.