Basic Park Information History and Culture Yellowstone’s Million-Dollar Room Yellowstone’s Million Dollar Room – the office of Charles Ashworth Hamilton. Yellowstone's Million Dollar Room - the office of Charles Ashworth Hamilton. Share this Facebook Icon Twitter Icon Email Icon Join Yellowstone National Park Create a personalized feed and bookmark your favorites. Join for free Already have an account? Sign In Join Yellowstone National Park Create a personalized feed and bookmark your favorites. Join for free Already have an account? Sign In