I will positively state that, no matter what may have transpired since, "Ballcap" originally received its name because of a green baseball-type cap that was down in the crater. Scott Bryan In a message dated 3/8/2016 11:27:49 A.M. US Mountain Standard Time, mabellingham at gmail.com writes: As to Ballcap, it's really interesting to track information and name changes, see Rocco's detailed work on Norris names on nearly any given feature! What *I* was told about the current "Ballcap" is that the water domes up in the shape of a half head, or ballcap. I do not recall who told that to me, but it's interesting given the physical and nomenclature evolution of any feature, be it information or misinformation. -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20160308/ea14ea90/attachment.html>