Stock Photo - Castle Geyser is a cone geyser in the Upper Geyser Basin of Yellowstone National Park. It is noted for the particularly large sinter deposits, which form its cone. These deposits have been likened in appearance to a castle. . When the geyser was given this name in 1870, the top edges of the structure resembled the typical profile associated with the modern concept of a castle, having the appearance of a large keep, multiple turrets, and especially because of the crenellation along the top edges of what resembled its towers. This distinctive confirmation is clear in the drawing made at that time, which is the first image in the gallery displayed at the end of this article. As demonstrated in the images presented in the gallery, the conformation of the structure varies from time to time because of layers of mineral deposited in successive eruptions. .