User blog:Wardie1993/Ammo box outside of world boundary?

I was south-west of Escalera and was in the very south-west point of the map i was looking at the map and i saw that there is an ammo box and dead-eye refiller west of that on top of that unscaleable cliff which marks the boundary the player can't go beyond, outside of the playing area? anyone else seen this, is this a bug or has Rockstar forgotten to take it out?