Lo-Fi Games

After reading one of Clawdius's posts i was again reminded that this game will have many biomes such as forests lakes mountains and what not.
Something that would become a problem is if i couldnt expand my city anymore simply because there was a tree/s in the way.
Thus just like we should then be able to remove trees or plant them, we should also be able to fill water, dig thru mountains, and everything else.
ofcourse this has to have a limit somewhere so maybe just let us chop trees down or something.

With the tree parts of vourse, they might even be likely o be a resource needed in the future, so you most liekely had to chop them for it already so kill 2 birnds in 1 shot, but don t think that the dig part trough a mountain is that "easy", if is trough tech i agree, if is just map(the hand of god if you wil xD) editor i don t.

Just not sure how to take that fill water, you mean like, do a "artificial" river or open a new.. idk how to clal, a new "Valey" on a existent river?