My Grandfather was also a miner and owned two mines North of Railroad Flat CA. in the heart of the motherload.
I would play in the mines as a kid. I spent many summers up there at the camp they had.
Mathew if you PM me with your Grandfathers name I can check in LR2000 and see what I can find for you.
A young man I worked with until a few days ago told us how his Grandfather was a miner and had several claims in this area. I punched in his name and one of his claims is now Island Creek Day Use Area.
Nichtijo and I had the pleasure of taking him there and showing him around the area. You only know the look on his face was priceless.
So do you guys ever feel like our ancestors are looking down on us and smiling? I know they are.