Photography Yellowstone Geyser & Springs Photos by Jeff Vanuga Yellowstone’s Midway Geyser Basin including the Grand Prismatic Spring, Excelsior Geyser, Turquoise Pool, and Opal Pool. Yellowstone's Midway Geyser Basin including the Grand Prismatic Spring, Excelsior Geyser, Turquoise Pool, and Opal Pool. 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