News Yellowstone Top of Seven Natural Wonders of North America “yellowstone-castle-geyser-vanuga” "Castle Geyser in the Upper Geyser Basin. Photo by Jeff Vanuga | Jeff Vanuga" Under construction 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 Photo: Jeff Vanuga