[Free Trapper]

If it was an island of sorts,would a stone dropped by a glacier and worked in place make sense?

[crystalk]

It is a kind of stone called greywacke, and there was quite a bit of stone outcropping and a sharp bluff of 50 ft or so just below the hill on which it was found, and a lot of rocks there, but the story definitely was that no stones found within some hundreds of yards, if not miles, were the same type as this...

Of course glacial action thousands of years earlier must have created the kind of topography shown in those maps, wonderful! Thanks, Okie!

I thought it highly significant that just a mile or less NE of the spot was something called Lookout Mountain, which must afford a view of prairie for miles, and might have been sought out and climbed by, explorers looking for how the land lay...and what their course should be...