Dilemma Geyser is a geyser in the Lower Geyser Basin of Yellowstone National Park in the United States.
Dilemma Geyser is part of the Pink Cone complex. Other geysers in this group are Box Spring, Labial Geyser, Narcissus Geyser, Pink Geyser, and Pink Cone Geyser.
Eruptions of Dilemma Geyser vary from a few seconds to a few minutes and are high as 10 feet (3.0 m) in the spring with 1 to 4 feet (0.30 to 1.2 m) the rest of the year. The interval between eruptions is 2 to 10 minutes.
The name for Dilemma Geyser came from the fact that the two vents of this geyser are surrounded by distinct run-off channels that couldn't be explained by the tiny eruptions that the geyser had prior to 1989. The eruptions were so minute that they would barely splash a few drops above the grass. Starting in 1989, the eruptions became more forceful and began putting out enough water to explain the channels around the vents.