The Old Kiowa Trail, still used today by Native Americans on horseback, is at the base of the Rocky Mountains. An old Navajo Trail criss-crossed the Rio Grande before heading west at Warmsley Crossing (John Dunn Bridge at Arroyo Hondo) There were additional trails that radiated out of Taos from Taos Plaza. A key trail into Taos was "The Old Taos Trail", which began at the Bent's Fort on the Arkansas River in Colorado, west of the Spanish Peaks, through Sangre de Cristo Pass (west of Walsenburg, Colorado), Old La Veta Pass and into Questa area (NM 522/NM38 area). It came into Taos at either Taos Pueblo road or half a mile west on Couse Hill. Another route into Taos was along the Cimarron Route. It was this route that most wagon trains entered into the Rio de Fernando canyon valley. The two routes are the "mountain route" and the "Cimarron Route" of the Santa Fe Trail. One of the Cimarron Mountain Routes paralleled the present U.S. Route 64 from I-25 to Cimarron. Trails branched off of the Cimarron Route into several communities. A branch of the route from Bent's Fort went into Taos in or after the founding of the Santa Fe Trail in 1821. The first wagon train was led by Charles Bent in 1831. Bent, the brother of William Bent of Bent's Fort, became the most successful merchant in Taos before being made governor of New Mexico. History of individual highways:  The Enchanted Circle Scenic Byway was made one of the New Mexico Scenic Byways on July 31, 1998. It was designated a National Forest Scenic Byway by the U.S. Forest Service on December 14, 1989. The movies "Easy Rider" and "Butch Cassidy and the Sundance Kid" were filmed in the area.