Amazon (rainforest)

The Amazon is a massive rainforest on the planet Earth. It has served as the site of several battles during the Transformers' stay on that planet.

Unicron Trilogy Continuity

In the Transformers video game, several early skirmishes occur in the Amazon. The Autobot strike force find their first Mini-Cons here, and encounter Cyclonus twice, culminating in a battle atop an ancient human temple.

From Teletraan I: The Transformers Wiki, a Wikia wiki.