By the very description of the Tam-Tara for example, it is clear enough that it's actually part of the Gelmorran ruins, here, specifically tailored for the rich and their burial site. Considering the sheer size of that specific part, I would assume that yes, Gelmorran subterranean tunnels are HUGE.
It is confirmed by the various places described in your link, and I assume that considering that the entrance of all those places are literally scattered around the Shroud (Tam tara in central, Toto-Rak in South, Mun-Tuy between South and East, open archaeological ruins in the South...), I think it's fair to assume that since gelmorrans couldn't exactly exit them to go wander happily in the forest at the time, they were all interconnected.
Now then, the only place we know of are mostly located around central/south Shroud, so it might be a hint that the Gelmorran civilization was mostly located here, but of that, we can't be totally sure and that's also the beauty of it: you don't exactly know to which depths and lenght those tunnels run...
Especially since there are also the Gelmorran ruins in the North Shroud as well, unless those are just Amdapori remains. So... Yeah, I would say, they extend pretty much everywhere.
You might find that video interesting as well, and the few speculative theories in it, although it's quite old. video
It is confirmed by the various places described in your link, and I assume that considering that the entrance of all those places are literally scattered around the Shroud (Tam tara in central, Toto-Rak in South, Mun-Tuy between South and East, open archaeological ruins in the South...), I think it's fair to assume that since gelmorrans couldn't exactly exit them to go wander happily in the forest at the time, they were all interconnected.
Now then, the only place we know of are mostly located around central/south Shroud, so it might be a hint that the Gelmorran civilization was mostly located here, but of that, we can't be totally sure and that's also the beauty of it: you don't exactly know to which depths and lenght those tunnels run...
Especially since there are also the Gelmorran ruins in the North Shroud as well, unless those are just Amdapori remains. So... Yeah, I would say, they extend pretty much everywhere.
You might find that video interesting as well, and the few speculative theories in it, although it's quite old. video
Balmung:Â Suen Shyu
