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About the Model Railroad

RTAC Software


The Randall Museum Model Railroad

The Randall Museum in San Francisco hosts a large HO-scale model train layout.
The layout was built by the
Golden Gate Model Railroad Club -- in 1961 the Club was offered space in the basement of the Randall Museum in San Francisco, where it has been to this day.

A Presentation of the Randall Model Railroad
Details on the original design and technical parts
A Presentation of the Randall Model Railroad

Blog & News
The latest developments on the layout
Blog & News

The model railroad is the result of more than fifty years’ effort to create a railroad in miniature with the communities it serves and combined with engineering and geographical features found on railroads in California. It features snow sheds on the high mountain line, various types of bridges spanning canyons on the Mountain Division and a narrow gauge line. The layout is HO scale and is contained in a room measuring 57 feet long by 38 feet wide. The mainline is about 600 feet long (nearly 10 scale miles), with an additional 200 feet or so of sidings and passing tracks (see below for the track plan).

The layout originally operated fully in DC with a state-of-the-art multi-throttle setup and centralized dispatch towers. In 2014, the layout was converted to operate in both DC and DCC. In 2015 the Randall Museum closed for two years of renovation. At that time, the Club donated the layout to the Museum. Upon reopening in 2018, the layout is fully operating in DCC with some parts of the track being automated.

(photo & train by Dexter D.)


The Randall Museum is located at 199 Museum Way, San Francisco, California 94114.


The museum is currently closed to the public due to the Shelter-in-Place Order in SF. Read details here.

The museum is open from 10 AM to 5 PM, Tuesday to Saturday.
Note that it is closed on Sundays and Mondays.
Access is free.

The model railroad is located in the basement. An elevator is available.

From Tuesday to Friday, the model railroad works in automated mode. Trains run at regular intervals.
On most Saturdays, volunteer operators come and run their own trains, depending on availability.

Volunteer Information

If you wish to volunteer to help improve and operate trains on the Randall Model Railroad, please contact Volunteer Coordinator Jim Evans at Volunteers need to be at least 16 years old and be cleared by a Life Scan check performed by the San Francisco Recreation & Park Department.

About the Model Railroad

The fictional Sierra Nevada & Pacific Railroad:

The model railroad is mostly a freelance layout with some roots in the history of California Railroads. All the towns on the layout represent California towns: Napa, Richmond, Fairfield, Lodi, Stockton, Sonora, Summit, and Bridgeport.

To know more, read
Our own SN&P RR: Route and Historical Scenario of the Sierra Nevada & Pacific Railroad on the old ggmrc web site.

Whole Layout Track Maps & Track Plan:

Track plan and label for Stockton Yard:

Schematics & Technical Documentation

Power Routing for the Stockton Passenger Station, SIA & Dow Freight Sidings:

Software Automation

Usage labels for balloon tracks:


Video playlist of various trains filmed in the Randall Museum including cab rides showing the whole model railroad:


Photo Gallery


2015 and before:


I would like to personally thank the following individuals for their contribution to our effort to restore the layout.

Scenery refresh: Greg and Claudette Ockander, Mike Garrigan, Robert Lopez, Jim Willcox.
Coordinators & Artistic Direction (a.k.a. “keeping the trains somewhat prototype”): Jim Evans.

Electrical, Computers, and Track repairs: Raphaël Moll.

I’d also like to thank Chris Boettcher, the Randall Museum director, and Nathan Robinson, of the Randall Museum Friends, for their continued support.


Usage manual for Museum Staff:         Randall Manual - Museum Staff [2019-09].pdf

Usage manual for Saturday Operators:         Randall Manual - Full v3 - 2018-08-30.pdf

Daily Activations Report: Daily Dashboard

Link to the legacy GGMRC web site (no longer updated).


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