Join us to celebrate the unveiling of the Nation’s T. rex in Washington D.C. with cookies and lemonade. In 2013, the fossil bones of Wankel T. rex (MOR 555) were sent to the Smithsonian’s National Museum of Natural History as a 50-year loan from the U.S. Army Corps of Engineers. In its new pose devouring a Triceratops, the Nation’s T. rex will be the centerpiece of the David H. Koch Hall of Fossils - Deep Time, a 31,000-square-foot dinosaur and fossil hall slated to open on June 8 at the Smithsonian. A bronze sculpture of the Wankel T. rex, known as Big Mike, continues to welcome members and visitors to Museum of the Rockies.