Registration for operating at one of our layouts will remain open till the start of the convention and several will remain open throughout the convention.  Slots are filling up, so if you wish to add a layout to your schedule please email the ops team at ops@millcity21.org as soon as possible.  If the layout you wish to operate on is full we will also accept requests to be placed on a wait list in case a slot opens up.  Please refer to the ops schedule to see which layouts are currently full.


With over 200 slots available on 16 different layouts, Mill City is the place to be if you want to partake in operations! Layouts are in a wide variety of scales from N to FN3. Most layouts offer assignments for all skill levels.

To participate, you can either indicate your choices on your convention registration form or contact the ops team at ops@millcity21.orgRegister early before the slots fill up!

In addition to operating on a wide number of host layouts, we are also offering the opportunity to operate on several layouts at the convention hotel. Ops session slots for the hotel layouts will be scheduled throughout the weekend.

New this year, is our Operator’s Mentoring Program. This program is designed for people who desire some hands-on training, an opportunity for newbies or someone who wants to tweak their skill level.  Sessions that support this program are highlighed in the schedule with a gray background


Operations Mentoring Program

Layout Descriptions

Operating Session Schedule

Printable PDF Schedule

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