I want to digg in the ravine area but it was frozen soild .I went in low area with glass i can see on the ground so i punched a hole a ton of glass bottles from the thirty and forty unbroken and a nice ash layer and rusted layer too . Where do you guys think the older stuff is?????I was the first to digg there today noone else has ever dugg there any tips you guys can give for a new bottle digger?????[8|]