[traditional birth stone] The MN State gem: Beautiful Lake Superior Agates - found on both north (MN) and south (WI) shores of Lake Superior. - Agates are semi precious stones so common on Lake Superior beaches no one pays much attention.
al make part of man made lakes go into warehouse so can breed fish for local people sales pays for some maintanence and release in oceans fish life! Inside a sandstone cave on Lake Superior, Apostle Islands National Lakeshore, USA.
Apostle Islands National Lakeshore encompasses 21 islands as well as shoreline along Lake Superior in northern Wisconsin. The distinctive geology of the area is a result of glacial activity many thousands of years ago leaving beautiful sandstone formation