The largest known T-rex skeleton was found in the United States, in the state of South Dakota. The skeleton, which was nicknamed "Sue", was discovered in 1990 and is now on display at the Field Museum of Natural History in Chicago.
The largest known T-Rex skeleton was found in Canada. This discovery was announced by the Royal Saskatchwan Museum in 1991. The fossil was named "Scotty" and measured over 42 feet long and weighed almost 20,000 pounds.
'Sue' the dinosaur skeleton was found in South Dakota, in the United States. This was the largest known T-Rex skeleton. This is now in the Field Museum in Chicago.