Quote Originally Posted by Gamerprinter View Post
Actually, Niagra Falls was mentioned in that same show.

Apparently Lake Huron and Lake Erie didn't use to be connected. But with the rising of the Lakes caused the water to be forced over the land between the two lakes, which formed the rivers that joined the lakes. The connection between the two occurred 1800 years ago.

Water from the upper lakes flowing into Lake Erie then Lake Ontario caused the water to flow which eventually formed Niagra Falls. So apparently Niagra Falls is relatively "recent" (in geologic time). The show suggested that eventually the water volume flowing over Niagra Falls will increase, though it may be several thousand years before there's any real kind of disasterous change, due to that.

GP
Although not posted to for awhile, I thought I'd add this little tidbit about Niagara Falls.

I also watched a History Channel's show about the Niagara Falls. One thing mentioned in that show is the fact that the four upper lakes water level will drop by up to the height of the falls 52 meters (167 feet). Of course, this won't happen for about another 12,000 years, and the water won't empty all at once but occur over several years to a couple of decades. That increase of water flow will do a heck of a gouging job.

rmfr