Fortunately, this isn't an enclosure, and is just a corner of raw land. It was cleaned off a few years ago before I bought it, so most of the major creosote bushes are gone, but it does have a pretty rocky surface. Personally, I don't think it's a very big deal to scrape an enclosure clean as long as they're eating off of a tray or a concrete slab, etc. Eventually (likely this winter) when I get my enclosures going out there, I will be bringing in lots and lots of soils for them. Being in the commercial concrete industry, I can get sands and soils very cheap (sand around $3 per ton). I also can get concrete very cheap also and do the work myself, so it'll be relatively easy to clean it up in no time. Now if I could just keep the rabbits out....