Near Faith, South Dakota, American paleontologist Sue Hendrickson found one of the most complete Tyrannosaurus rex skeletons, nicknamed Sue (pictured).

Faith is a city in the northeastern corner of Meade County, South Dakota, United States. The population was 367 at the 2020 census. The most complete Tyrannosaurus rex skeleton known, Sue, was discovered approximately 15 miles (24 km) northeast of Faith in August 1990.

Susan Hendrickson is an American explorer and fossil collector. Hendrickson is best known for her discovery of the remains of a Tyrannosaurus rex in South Dakota on August 12, 1990, in the Cheyenne River Reservation. Her discovery is the most complete skeleton of Tyrannosaurus known to science. This skeleton is now known as "Sue" in honor of her. It is on display at the Field Museum in Chicago, Illinois. She has also found other important fossils and artifacts around the world.

Tyrannosaurus is a genus of large theropod dinosaur. The type species Tyrannosaurus rex, often shortened to T. rex or colloquially t-rex, is one of the best represented theropods. It lived throughout what is now western North America, on what was then an island continent known as Laramidia. Tyrannosaurus had a much wider range than other tyrannosaurids. Fossils are found in a variety of geological formations dating to the latest Campanian-Maastrichtian ages of the late Cretaceous period, 72.7 to 66 million years ago, with isolated specimens possibly indicating an earlier origin in the middle Campanian. It was the last known member of the tyrannosaurids and among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction event.

Sue, officially designated FMNH PR 2081, is one of the largest, most extensive, and best preserved Tyrannosaurus rex fossils ever found, at over 90 percent recovered by bulk.