Silver Ridge

Silver Ridge is a ghost town from the Armada portion of the Unicron Trilogy continuity family.

While the humans may have abandoned the mining town of Silver Ridge long ago, the Decepticons think it's the great location for a base.

Silver Ridge is either located in Nebraska or North Dakota, depending on who you ask.

Fiction

Dreamwave Armada comics

Shortly after arriving on Earth in search of Mini-Cons, the Decepticons set up a base in Silver Ridge, Nebraska. Sparkplug, Longarm and Jolt infiltrated it in an attempt to rescue the Air Defense Mini-Con Team. Dreamwave Armada issue 6 Later, after most of the Decepticons left their base to go to the Moon, the Autobots attacked it so they could make use of its space bridge. Dreamwave Armada issue 9

The Silver Ridge base was infiltrated again after the Decepticons found Over-Run's null-reality pods and took them back to base. Worlds Collide, Part 2 of 4 In addition, three Heralds of Unicron made it into the base by taking the space bridge from Cybertron. Worlds Collide, Part 3 of 4 Over-Run then used the null-reality pods to locate Optimus Prime, who was lost in another dimension, and brought him back to their dimension's Silver Ridge. Worlds Collide, Part 4 of 4

Panini Armada comics

The Decepticon base was hidden underneath the ghost town of Silver Ridge, North Dakota. Sparkplug, Longarm and Jolt infiltrated it in an attempt to rescue Leader-1 and the other Mini-Cons enslaved by the Decepticons. Into the Lions' Den! Some time later, the Decepticons had relocated to a new base on the Moon. Earthshaker!