Carey Block  The Carey Block—located at 602 Greybull Ave. in Greybull, Wyoming—is a building that was built in 1916. It has also been known as Hurst Block, First State Bank, and Greybull Hotel . It was listed on the National Register of Historic Places in 2009. It includes a two-story portion that is in plan and a one-story wing. It was built by Gagnon & Co. in Early Commercial style.