1873
A new railroad (the Atchison, Topeka, and Santa Fe), also building west from eastern Kansas, began to compete for Santa Fe Trail traffic in July 1873 when it reached (old) Granada, in eastern Colorado. Most trail traffic began running over the Granada-Fort Union wagon road, although some traffic continued through Trinidad. Trail length from Granada to Santa Fe = 323 miles: 224 miles on the connecting road and 99 miles along the main trail right of way.