Atomizer erupts in series. The series consists of 3-5 minor eruptions and culminates in a major eruption. Minor eruptions last about one minute and reach up to 30 feet. The water-phase of the major eruption lasts 8-10 minutes and reaches 40-50 feet. This water-phase is followed by one of the best steam-phase eruptions in Yellowstone National Park. There are only a handful of other geysers, all of them fairly rare, that have louder and more impressive steam-phases than Atomizer.
Atomizer is a cone-type geyser. It consists of two cones each about 3 feet high. The jetting comes from the left-hand cone. The right-hand cone, or mound, only exhibits activity during a major eruption. This activity consists of the spraying of a fine mist to a few feet. It is this fine mist that gave Atomizer its name.
Atomizer is located behind Artemisia geyser. Unfortunately, there is no way to get a close look at it but it is a fun companion on those long Artemisia waits. The possibility of a major eruption with its accompanying steam-phase, which is easily heard from the trails in the area, makes Atomizer a truly fun, if often overlooked, geyser.