The Denver Rio Grande & Western Alamosa-Chama Subdivision is the O Scale narrow gauge model railroad of Philip and Linda Stead. Located in the basement of their home north of Atlanta, Georgia, the Steads have faithfully modeled the entire route of the current Cumbres & Toltec Scenic Railroad — once a subdivision of the Denver, Rio Grande & Western Railroad's 36" narrow gauge mainline between Alamosa, Colorado, and Chama, New Mexico. Set in the year 1949, their large layout is 30' by 50' in size and features over 300 feet of On3 narrow gauge mainline that includes the prototypical 4 percent climb from Alamosa and Chama (at 42" layout height) to Cumbres Summit (at 66"). Interesting Proto48 dual gauge trackage is also modeled in Antonito and Alamosa, including the railroad's unusual dual gauge transition cars for switching. The layout is fully sceniced and portrays an accurate transition of contexts according to altitude. The Steads are quick to give credit to many friends and fellow narrow gauge modelers who have contributed to their layout's impressive construction, scenery, and current operations.