Glenwood, South Park and Pacific Railroad

The oldest 15" gauge railroad in the Santa Cruz mountains of California.



GSP&P No. 5 Builder and engineer




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No. 1 many years ago


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Here are links to various technical topics.

This is a link to the Allen 0-4-0 

Scales and gauges can be confusing. Here is an un-confuser
Scales and Gauges

Before starting to build your locomotive, you have to design the cylinders and valves
Slide Valve Design

If you want to lay track, I have a calculator to help lay out curves
Link to Curves

The drawings used to build the GSP&P caboose
GSP&P Caboose


Nothing to do with railroads, my pipe organ interface board
YAPPI


Emails concerning the GSP&P or Grandscale railroads in general can be sent to: TheDispatcher@GSPandP.com