See the last hurrah of the Denver & Rio Grande narrow gauge in South-West Colorado - just as it really used to be! Catch passenger operations on the 170 miles between Alamosa and Durango with engines roaring across the flats of the San Luis Valley, battling the 4% over Cumbres Pass, and winding through canyons all the way to Durango. Some of the last passenger specials to shine these rails rumble through Canyon Amargo and take water at Arboles, now lost beneath the waters of Navajo Lake. View the long-lost Farmington Branch, and a mountain rescue on the Silverton. Finally follow the last train all the way from Alamosa to Durango as it races across the valley then climbs to the summit of Cumbres Pass at dusk in the snow. We hear its whistle echo one last time off the canyon walls before the rails fall silent forever. Cinematography by Herb Craig and Mac Owen