About 9,000 years ago, when water levels in Lake Huron were approximately 100 m (330 ft) below today’s levels, the Alpena-Amberley Ridge was exposed.
https://github.com/davepinch/pinchy.cc/blob/master/content/topics/places/ridges/alpena-amberley-ridge/alpena-amberley-ridge.md
The real snub of Owens came from his own president. Even after ticker-tape parades for Owens in New York City and Cleveland, President Franklin D. Roosevelt never publicly acknowledged Owens’ achievements. Gold in the 100 meter, 200 meter, 400 meter relay, and long jump. Owens was never invited to the White House and never even received a letter of congratulations from the president. Almost two decades passed before another American president, Dwight D. Eisenhower, honored Owens by naming him ‘Ambassador of Sports’. In 1955.