Case file · High strangeness
The Windsor Hum and Zug Island
From 2011 people across the river in Windsor, Ontario, reported a droning vibration; on one evening in 2012 officials received 22,000 reports. Studies located the source at Zug Island, an industrial area in River Rouge, Michigan.
2011 CE · 42.29, -83.11 · status: explained
The sceptical view
A US Steel mill was the probable source, and the noise stopped when its blast furnaces shut down in April 2020.