The U.S. Mint will hold its launch event for the Grand Canyon National Park on Tuesday, September 21, at 1:30 p.m. (MST). You can watch the event live starting at 1:25 p.m. (MST)—4:25 p.m (EDT) at americathebeautifulquarters.gov. I will have the highlights and B-roll video posted here when it becomes available.