Layout Name: DSP&P Railroad
Layout Owner: George Sebastian-Coleman
Scale: On30
Era: 1884
Size: 24' x 28’
Scenery: 80%

The Alpine Tunnel District models a section of the Denver, South Park and Pacific Railroad in the spring of 1884. The On3 layout depicts Gunnison (end of the mainline), the climb up the Palisades to the Alpine Tunnel, and then down Chalk Creek through Romley and St. Elmo. The layout recreates key scenic and structural elements with a high degree of fidelity.

All visible track is hand laid on ties shaped to resemble the pole ties used when the line was built. Scenery is about 80% complete with mostly foresting still to be finished. Models are a mix of kit and scratch built, including some 3D-printed models based on George’s artwork. Some key structures have been installed, but many others remain to be built. The layout is dead rail; all trains are battery powered and radio controlled.

Model features such as the Palisades (rock retaining wall) and the stone enginehouse at Alpine demonstrate George’s skill at accurately replicating the prototype.


Scale: On3

Prototype: DSP&P, Alpine Tunnel District

Locale: Southwest Colorado

Era: 1884

Layout Size: 24' x 28’.

Trackage/turnouts: Hand-laid track, 42 inch min. radius, no. 6 min. turnout.

Construction: Two levels connected with steady grades.

Control: Dead rail, battery power.

Scenery: 80% complete.

Accessibility: Not wheelchair accessible.

Parking: Park on street or on grass in front of house. Enter through garage.

Layout Visits: Yes

Operations Sessions: No

Website: No