'About 10,000 years ago this dug out the 10,000 lakes'
the glacier
MINNESOTA: About 10,000 years ago this dug out the 10,000 lakes
About 10,000 years ago this dug out the 10,000 lakes
About 10,000 years ago this dug out the 10,000 lakes
MINNESOTA
the glacier
MINNESOTA