Bonjour! CYUL, Montréal’s international airport is half underground. It looks like a very slight mound, like 10 of feet of, sorry, 3.048 metres of dirt were spilled across the northern half of the airport, runways, and gates.
P.S. thank you for fixing KAUN, Auburn California’s small Muni airport. The new starting point still drops your plane, but not far enough for it to register an immediate crash.