Fixed the issue with Old Faithful spawning in the wrong area. Edited the mod support file for terra mirabilis and changed the coordinate for greatest earth map to 6,51. For anyone else wanting to fix this issue:

1. Navigate to content/289070/1461463960/Core/Natural Wonders

2. Open TM_ModSupport.sql

3.Find The line that says "Feature_Old_Faithful" and "GreatestEarthMap"

4. Change the coordinates at the end of the line to 6,51 (This was my best estimate but you can change it to whatever you want, really)

You should be able to find it near Mato Tipila and slightly above and to the west of Grand Mesa.