Lake Superior beaches, Grand Marais, Alger County, Michigan, USA

Here is a photo of an excellent agate found on the public access beach at Grand Marais Michigan. Agates are well known to be found in the area beaches, but they are also known to be very picked over sites. This agate was found in mid-July, the time of year when most agates of good size and quality have already been scooped up. This agate was found ...

Banded Lake Superior agate.

This is a photo of the beach at Grand Marais, Michigan where agates can be found. I suspect that the agates found on beaches here and to the east were removed from their rock hosts by glaciers near Michipicotin Island located many miles to the north offshore of Ontario and were distributed along what was to become the lakebed of Lake Superior. ...