Hoover Dam

The Hoover Dam (originally known as Boulder Dam [1]) is a large dam located in the United States of America, right on the Colorado River. It provides power to six states.
Fiction
Generation 1
Big Looker Story Books
The Decepticons attacked Hoover Dam to steal energy from it. This consisted of blasting holes in the top of it. The Autobots arrived and counter-attacked, driving them off, and the dam was saved.[citation needed]
Marvel The Transformers comics

Bombshell used a cerebro-shell to force hydroelectric engineer Ricky Vasquez to bring Megatron into the energy plant at Hoover Dam, as part of the Decepticons' plan to steal the plant's energy and transport it to Cybertron via the space bridge. In response, Optimus Prime sent the newly built Aerialbots to hinder the Decepticons. Ricky Vasquez eventually regained control of his body and fired Megatron at the space bridge, saving the plant. Aerialbots over America!
Live-action film series

Hoover Dam was the location of Area 52, a secret Sector Seven base. Transformers Coloring and Activity Book and Crayons
Transformers film
Hoover Dam has always been a dam intended to provide power. It was not the secret base of Sector Seven, because Sector Seven does not exist. At no point in time did it hold any robotic lifeforms or alien technology. There is nothing to see! These aren't the droids you're looking for. You may go about your business. Move along. Transformers
Titan movie comics
In an alternate timeline where Megatron won the battle of Mission City, Megatron used the former Sector Seven base as a prison for Optimus Prime—who he had frozen, for he was petty. A tunnel link to the dam could be accessed in Denver. Twilight's Last Gleaming, Part: 1 A ferocious running battle eventually saw Optimus rescued and Megatron dead. Twilight's Last Gleaming, Part: 5
IDW movie comics
One of Herbert Hoover's main goals in office was to construct the Boulder Dam as a permanent base to keep the AllSpark. That's why they renamed it after him! Field Notes from John Barber #2
Sector 7 Adventures: The Battle at Half Dome comic
Sector Seven ordered Agent Bell and his squad to transport troop platoon to the Igloo beneath Hoover Dam, though Bell was under orders not to let his squad know they were actually carrying a reverse-engineered Decepticon weapon. Despite an attack by Soundwave incapacitating Bell and forcing Agent Simmons to deploy the device to save the squad, the cargo eventually reached its destination. There, Director Banacheck loops Simmons in on the facility's real purpose: detaining the frozen Megatron. Sector 7 Adventures: The Battle at Half Dome


