I'm no GM, although I know that when you do //snow {radius} you can //thaw {radias} and it essentially reverts back to how it was. Although the Halflings have the Tall Grass + Flowers so It will mess up the feel as there will be Grass and Such Poking out so you will have to get rid of it if anything. Although I'm not sure how this would go with the whole corruption issue. I would speak with Native personally on that matter.