that says nothing!The pictures show iregular and LARGE holes......These are no where near Yosemite .......good try....have you ever heard of the Mother Lode?Do you know what it is?This is a piece of it.......not glacial till.Your article also explains exactly what I have tried to explain to you,on how pot holes are formed and if you have ever personally see these or the glacial pock s like they picture here you would be embarrased to know they are nothing like the grinding rocks I have pictured.
Are you that bored you would take offense to this post. Your rock is clearly one of these leftover stones. Yet you just do not get that. It truly puzzles me that you are laughing at a National Geological survey that covers your area and explains your grinding stone. Your statement of the potholes next to rivers was correct and i knew that but your statement on this type is completely wrong. You have a clear residual glacial debris in that picture. I asked you before, IS IT NOT FAIR TO SAY THAT THIS COULD BE ONE OF THOSE STONES?? These were displaced boulders and were carried as far as the glacier progressed along the land. Remnants like these are all across the US and Canada. So please answer the question. I think it is fair.
