around the pond. If building a fence across a small hollow(only 3 0r 4 ft. el. difference), do you put the posts up vertical and the same height; perpendicular to the ground at the given point, or what. Does the fence run horizontal and fill in the bottom with more wire? I have pondered this for a while; now I give way to higher authorities. Yes, any of you with experiences, good and bad. Experience is usually something done not quite right, right?