The term 'Buffalo Backdrop' refers to the city of Buffalo, New York, which is located on the eastern shore of Lake Erie. The crossword solution for this term is 'ERIE, ' which is the four-letter name of the lake. Buffalo is the second-most populous city in the state of New York and is known for its rich history and culture. It is also home to the Buffalo Bills, a professional American football team. The backdrop of the city is provided by Lake Erie, which is the fourth-largest of the five Great Lakes.