According to legends, Nundle needs some dumping down rain to replenish stocks in the river bed - there was scuttlebut 40 odd years ago that the gold came from half way up the drop off at hanging rock and was transported down the rock face to a small creek/swampy area, where it confluenced with the peel river at bowling alley point. That explained the difference in character of gold below and above bowling alley point
The Peel has always been good to me though...