Name: San Juan Extension
Layout designer: John Short
Scale: HOn3 (1:87.1, narrow gauge)
Size: 13′-6″ x 22′-6″ plus 7′-0″ extension
Prototype: Denver & Rio Grande Western (some Rio Grande Southern)
Locale: southwestern Colorado
Period: September 1948
Style: walk-in
Mainline run: 161 feet
Minimum radius: 24″
Minimum turnout: no. 6
Maximum grade: 2.5 percent
Originally appeared in the Great Model Railroads 2014.