The Red River is what's left of ancient Lake Agassiz. CATHY WURZER: You are listening to Minnesota Now here on MPR News. I'm Cathy Wurzer. As you know, Minnesota claims to be the land of 10,000 ...

Bill Redekop drove from near the Canada-U.S. border south of Morden up to Swan River, following one of giant phantom beaches of the ancient Lake Agassiz. Known as Campbell Beach, it forms part of the ...