Single tile pillars - How to remove these?

Is my only option building a giant mountain of dirt encasing it to then dig it all down? Or is there some easier way I'm missing?
Salem discussion forums
https://forum.salemthegame.com/
lachlaan wrote:Nah that's pretty much it, except it'd be a one sided ramp more than a mountain.
mintypie wrote:Should all the map have the ability to be terraformed though? I feel like the whole point of the world generation is to have unique landscape features. I'm not saying that it is interesting, but shouldn't that existing near you keep you from using that land?
Argentis wrote:Oh? So tell me how you remove these: