The Missouri Crematory was the sixth modern crematory built in the United States and holds the distinction of being the first crematory built west of the Mississippi River. The crematory is located at 3211 Sublette Avenue in St. Louis, just across from the State Mental Hospital off of Arsenal Street. Now called "Valhalla's Hillcrest Abbey" it is owned by the Zell Family, who also own the Valhalla Chapel and Memorial Park on St.