Here it is, The ORIGINAL Geyser, for which all others are named. Checking out this little geyser basin was an eye-opener... for what it is, commercialized, and what it isn't: big. Suddenly I extra-appreciated the scope of Yellowstone and the protection a national park offers; we are spoiled to have Yellowstone. This geyser goes off frequently so it was fun to see it erupt (to about 20').