Lakeshore residents living near Patillo Road and Pike Creek Road say they sometimes hear it; a low-vibrating noise that almost sounds like a car driving by with a set of powerful sub-woofer speakers.
Whatever it is, residents have dubbed it the Lakeshore Hum, and it is keeping some residents up at night.
Councillor Steven Wilder said a resident first brought it to his attention in 2015.
"He said, 'I hear this, like humming noise. It's like a vibration. It's weird.,'" he said.
At the time, Wilder was not sure to what the resident was referring. He has lived in the area his entire life and had never heard it for himself until some time later.
"You'd kind of hear the odd noise, and you'd think, okay, someone's having a party, or someone's playing a stereo, but it would never dissipate," said Wilder.
The noise comes and goes. Wilder said he did not hear it Tuesday night, but it was powerful the night before.
There are theories what is causing it, but nothing substantive, and Wilder is reluctant to speculate what it might be.
Residents have also complained of a noxious smell at night, but an earlier Ministry of the Environment investigation could not pinpoint its source.
Wilder said the smell and the vibration are not connected. They are separate mysteries.
"We know what we hear and what we're smelling, but where is it coming from? And, more to the point, what is it?" he wondered. "I've had people ask, is it harmful? No idea."
While residents in west Windsor and LaSalle have complained for years about their own low-vibrating hum, Wilder said it is different from the Windsor Hum which was traced back to Zug Island in the Detroit River. It is unique.
Wilder is expected to introduce a motion at Lakeshore's next town council meeting on December 10. It will call on the town to ask the Ministry of the Environment to investigate the vibration.