That ground is quite a bit rougher than it looks in that photo and yes, the culvert is a much shorter route for me more than the cows - and a decent place to put a perimeter fence. There is a gate on the far side.  If you look at the last photo above - to Joshua about fence corners - that culvert is in the clearing in trees the distance behind the orange gate handle. It provides a means to cross a ravine near the top end and connects two old logging trails. On the right hand side of that culvert and down the ravine etc. is some very good deer hunting.

Jim at Dawn