So one of my friends up in the blue mountains gave me a tip off to this unusual structure called the birdcage or the convict hole.
Just below the metal cage is a 15m deep hole cut through stone.
This is in the middle of absolutely nowhere, apart from a construction site storage facility nearby there is no man-made structures recent or old. While I have heard stories as to it's existence, I want to know if anybody else knows what it is/why it is here?
There was a geocache, idk if it's still there. That's what I found on the internet about it being an old grain silo, just wanted to know if others had heard the same thing/something different. As for depth, a dropped rock took just under 1.5 seconds to hit the bottom, so (bare with me) gravity is 9.8m/s/s.
9.8 x 1 x 1 + 9.8 x 2 x .4 = 17.6m, it's a deep hole.
My mistake, it has fallen 11m and is falling at a rate close to 15m a second.
Didn't bother, while you can crawl in, the view at the top is much better then the bottom
After a 200m bush bash from the road there's the rock wall right in front of you, and you just gotta climb that semi-cliff face. so once you know the way to head it's simple enough.
Potentially a failed mine shaft, as at the bottom it's solid rock (ie it's just a hole, no connecting tunnels). Though what what would you hope to find mineing through such hard rock ..? maybe gold?