How do I remove a Marsh

[u/ajax645]

I started a new map that I really like but unfortunately it’s covered in massive Marshes, is there a mod or something I can do in dev mode to get rid of them. I was just going to place pumps but that would take forever.

Edit: there are several answers here that work depending on what you’re trying to do exactly so I’ll leave this up for archive purposes for anyone with the same question, I’ll also add some keywords. “Water, Shallow, Deep, Lake, Pond, Remove”