Searchers for this cache should note that if you approach from the north, there is a bluestone ford to cross which is not suitable for 2 wheel drive vehicles. You will need to approach from the south. For others, you will need to avoid it at times of high water.
I can hear the discussion now -
"Boss, what about this gate?"
"What about the gate?"
"Well, nobody can open it any more."
"Why not?"
"All these rocks are in the way."
"Well, leave it, someone may move them one day. Or use it for a cache."
And they did.
Not the move them bit though. Not yet at least.