Thunder Mesa is expanding! In 2021, a new 3x5' Calico Mountain Extension will be built next to the town of Calico, adding a longer run and a reverse loop option to the On30 mainline. On a higher level, the new On18 Calico Mining Company Ry will wind in and out of the mountain in a figure 8 pattern, evoking the look and feel of Knott's famous Calico Mine Ride. Both lines will journey underground, passing through detailed mining scenes inspired by the Knott's original. Some version of Calico Mountain has been part of the plan for Thunder Mesa from the earliest days, and I'm excited to finally be bringing this to life. Here's a first look at the new Calico Mountain Extension, and an all new layout map for 2021!
Above is the first new layout map I've published since 2016, and as you can see, there have been a lot of changes! At left is a floor plan of the Jerome studio, showing how the layout fits in with everything else. In this week's video, I demonstrate a little bit of my process for making these plans, and go into more detail on the new Calico Mountain section.
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