Old Spanish Trail, United States USA https://en.wikipedia.org/wiki/Old_Spanish_Trail_%28trade_route%29 Wikipedia entry for the Old Spanish Trail in Colorado A trade trail established by the Spanish in the 18th and 19th centuries. The trail consisted of a few branches, with each one originating in Santa Fe, New Mexico. The Armijo Route ventured only briefly into what is now Colorado on its way West. The Northern Route traveled through Eastern Utah to arrive near Green River. The Northern Branch passed through the San Luis Valley, crossed Cochetopa Pass to what is now Gunnison, Colorado, then traveled along the Uncompahgre to arrive in Mesa County and through what later became Grand Junction before heading east. Each branch of the trail began in Santa Fe, merging with the other trails before arriving in Los Angeles. According to David Sundal, the Old Spanish Trail in Mesa County followed what is now the route of Highway 50 from Delta, and then crossed what later became known as Orchard Mesa, fording the Colorado River near what is now 28 ¼ Road. It then followed along what later became known as River Road. Much of the Spanish Trail followed trails that had long been used by Native Americans. yes yes