I agree with the addition to 4VAC5-30-95. Just because you are in a wooded area, doesn't give you the right to use the bathroom where ever you please. If you are going to a State Park, you should use the necessary precautions to make sure you aren't seen. I think 200ft is appropriate. 200ft is only about 80 steps from a trail or campground, which isn't inconvenient for hikers or campers. From personal experience of camping long periods in the woods, I always went out of my way to make sure someone didn't see me or come across my bodily fluids. Especially with defecation... just dig a hole and cover it up.