Tagan Heights

Responsible for forty percent of Cybertron's industrial output (which is really saying a lot) the Tagan Heights were considered one of the most strategically valuable regions of Cybertron. And during the Dark Ages, everyone wanted it real bad.

Dreamwave Generation One continuity
After the disappearance of Optimus Prime and Megatron during a test of the space bridge, the Autobots and the Decepticons split into different factions, each with different agendas and different areas of control, essentially rendering the Great War into a turf dispute. During this time, the Tagan Heights, with all its industrial manufacturing capabilities, became one of the most disputed regions on the planet. Ratbat and the Ultracons made several efforts to secure the Heights, only to be frequently thwarted by Springer and the Wreckers. Ratbat's frustration became so great that he openly defied the Crisis Intervention Accord and convinced the Constructicons to ally with the Ultracons. Ratbat subsequently unleashed Devastator in an attempt to take the Tagan Heights, but the Protectobots learned what was happening and went to battle Devastator as Defensor. During the battle between the two Combiners, much of the Tagan Heights was destroyed.

Live-action film series
The Tagon Heights [sic] exist and the area containing them is surrounded by the Decagon, Tyrest, and the Neutral Territories.

Beast Wars: Uprising
The Tagon Heights were a cluster of strategically valuable cities located on Cybertron's western hemisphere. During the Grand Uprising, the Maximal Command Security Force declared their independence from the Builder Assembly and annexed the region, renaming it the "Maximal Nation".

Siege bios
The Tagan Heights region comprised many of Cybertron's core industries before the Great War; its high strategic value led to it sustaining heavy damage in the Great War, compromising its production capabilites. During this conflict, Ultra Magnus was deployed to the area.

Aligned novels
Autobots and Decepticons secretly battled for allegiance from the scientists of Tagan Heights, and as the war dragged on and resources became scarce, conflict became open. Sometimes Ultra Magnus's Wreckers were all that stood between Tagan Heights and the Decepticons, buying time for scientists to build the Protectobot combiner Defensor to defeat Devastator. Unfortunately, the two goliath's battles wrecked the area and two Devastators later destroyed the very factory Defensor was built in when pursuing Minicon saboteurs.

Transformers: Devastation
Kranix lived a simple life in Tagon Heights on Cybertron before joining the crew of the Proudstar on the Mission of Cybertronian Expansion.

Merchandise

 * RISK TRANSFORMERS CYBERTRON Battle Edition (2007)
 * The Tagon Heights is one of the red zones on the board.