The text reads, "High above the Animas River in the Canyon of Lost Souls the Silverton carries some 40,000 tourists each summer on a 90-mile round trip from Durango to Silverton, Colorado."
Silverton, in the San Juan Mountains, Colorado and the Animas River, as seen from the Million Dollar Highway (far left). In this picture, the famous narrow-gauge train, the Silverton, can be seen heading for Durango.