Large resource deposits on travel map#497

Resources: Areas now have large nodes underground that correspond with the resources found in that area. Each one has a set amount of resources and replenishes each eruption. Each eruption, the node moves within its area near a magma pocket. Mining the node would be an active ability of the drillship, which increases fuel consumption during mining operations. Drill level determines which ore is minable, engine determines fuel consumption and mining speed.
-Underground deposit story tie-in: The COGS are using the eruption to bring deep-earth deposits closer to the surface. (Possibility of making a “guardian drillship” to guard underground nodes and implement some rudimentary melee-style combat feature)

So is this something that happens on the travel map, or is it on the surface ?

It would be on the travel map, in the tunnel layers.
I suppose the “up to the surface” could be confusing so I’ll fix that.