Welcome Mark. THe Lower lodge is a FSX/P3D scenery. (Not MSFS):
It is part of the Hang Em High Resorts (
https://return.mistymoorings.com/s_scenery_rtmm/#h)
So for this one, you have to fly location, not icao and after flying there, save you flight so you can take off from there..
map attached... the yellow circle is the actual location of the Lower Lodge.
The other ICAO's seen in the pic are RTMM MSFS valid ICAO locations.
Norm
PS: See the NOTAM1: Tour Series on the MFC Home page. (We kind of decided to keep most non-fictional in MSFS whereas there are many fictional locations in RTMM for FSX-P3D.