Depending on how much impact you want to leave behind, you could always look to the beavers for inspiration. I hunted a lot back east and found that the beavers created the best, natural marshes way back in the woods. The best part is that it was biodegradable and we didn't have to bring in heavy equipment like a dozer. I imagine you could accomplish something similar with a CTL, a bucket, shear, and grapple and not have to jump the the permit process.
"Life is tough, but it's tougher if you're stupid."