Believe it or not, but a fellow named George Cramer and I built that fence that goes around the mouth of the cave. It was quite a job, digging the post holes by hand, carrying 5 gallon buckets of concrete down the hillside to set the posts in, and stretching the woven wire around. I was bending over to clean dirt out of one of the holes and my hardhat fell off, went bouncing down and into the hole. We found it later at the bottom of the mound. I was pretty thankful that I wasn't still in it.