The Southern Arizona Society of Model Engineers
The Southern Arizona Society of Model Engineers

Welcome to SASME

The Southern Arizona Society of Model Engineers -- SASME -- is a model railroad club located in Tucson, Arizona.


We began promoting the hobby of model railroading in 1954. We've had several locations over the years, but in 1984 we moved into our present building. 


The club's HO layout is the Tucson and South Western Railroad, nicknamed The Cactus Route. It interchanges with the Crown King and McNary NGRR, a narrow gauge HOn3 line. 


We meet most Wednesday nights at the club's building. (Check the Coming Events section for the latest information, especially around Wednesday holidays.) 


Business Meeting -- the first Wednesday of each month at 6:30 PM (except December). 


Work Night -- is dedicated to layout work. 


Prototype Operations -- is standard gauge prototype operations night.

  • 2:00 PM - track cleaning
  • 3:00 PM - trains start running
  • 4:30 PM - break for dinner
  • 6:00 PM - start running again


Run What You Brung -- is for the open running of trains. 


Narrow Gauge Operations -- is narrow gauge prototype operations.


See the Coming Events section or the Railjoiner for more information.   

Coming Events



Narrow Gauge Ops 18

Prototype Operations 19

Run What You Brung 26



Business Meeting 2

Work Night 9

Work Night 16


We will vote on these changes to the December Operations and Run What You Brung dates at the  Dec. 8 Business Meeting.

Contact Us

In-person Wednesday evenings


1818 E. Winsett St.

Suite A 

Tucson , AZ 85719




The quarterly newsletter including the club event calendar.

Photo gallery of past layouts and scenes.