It is during the steam-phase that Gizmo is its tallest with one vent reaching about 15 feet. Even if you are not watching for them, Gizmo's steam phases are loud enough to get your attention. Tilt is a fun geyser. It is small, only often less than 3 feet tall, duration about 2 minutes and intervals in recent years when active of about 50 minutes. What makes Tilt Geyser so much fun are the interesting sounds it usually makes when it ends.
Tilt consists of three small surface vents.
Two of these vents, the two that do most of the bursting during the eruption, are right below the fenced corner of the boardwalk past Castle Geyser and across from Crested Pool . These two ragged holes in the sinter are easy to miss. The third vent, and the one that makes the interesting sounds, is located about 10 feet to the right of the first two vents, closer to Castle. The corner of the boardwalk, where Tilt is located, is a good place to wait for an eruption of Castle Geyser. Not only can you watch Castle from this location but you can also watch the activity on Geyser Hill and in the Sawmill and Grand Groups.