Manuela Calderon oversaw security operations at Grey Ridge Mine.
After being hit by sonic cannons, Carnage and a team of F.B.I. agents fell through a fracture into a played-out section of the mine.
A Chthonic temple was hidden in the depths of the mine.
It was accidentally discovered while the Grey Ridge Investments workers were pursuing a coal seam.
The temple was eventually destroyed when the mine collapsed over it.
- Appearances of Grey Ridge Mine
- Minor Appearances of Grey Ridge Mine
- Media Grey Ridge Mine was Mentioned in
- Location Gallery: Grey Ridge Mine
- Images related to Grey Ridge Mine
- Marvel Staff members who were born in Grey Ridge Mine