Where was the fossil of a t rex found first?

The first fossil of a Tyrannosaurus rex was discovered in 1902 in the Hell Creek Formation in Montana, USA. This groundbreaking find was made by fossil hunter Barnum Brown, who unearthed the fossilized bones that would later help define our understanding of this iconic dinosaur. The discovery marked a significant moment in Paleontology, leading to further research and exploration of T. rex and other dinosaur species.