Looks like a good place to have a Guard House with a Sentry and live ammo. Iam thinking between that and a rotting bloating corpse of the previous fool that attempted criminal invasion it would be a deterent.
Guard house with sentry is a good idea. In a military operation, you don’t put a perimeter in just any old place. You put it where it makes sense. Same with a fence. It should be across the entire border, but it should be where it makes sense and offers the best position from which to attack.