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 a 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!