I'm taking a look at what would be needed to adapt this for RT.

In the Acclimation quest, the only difference I can see between this mod and Vanilla is a for loop changed from:

for city in player:Cities() do
to:
for id = 0, player:GetNumCities() - 1, 1 do
local city = player:GetCityByID(id);

On the surface this appears to be a different way of doing the same thing. How does it relate to the check for canyons near cities to determine eligibility? Did Firaxis actually fix that issue?