A sinkhole was discovered in Houghton Wednesday evening just outside of Dodgeville atop an old mine shaft.
According to city officials, the mine shaft was never closed properly and it gave way possibly due to the extreme frost this winter.
City officials believe the sinkhole is part of the Huron Mine Shaft #8. The City of Houghton is securing the area and waiting for the mine inspector to investigate.
The city is asking people to stay away from the area, though they believe this is an isolated incident not posing any further danger.