| Comments: | Watched Gray Bulger Geyser for almost two hours. Erupting from six active vents, but at any one time, four or five or six would be actively erupting. Vent numbers 4, 5, and 6 of Gryc (2016) erupted continuously - vent 5 was the most energetic; vent 6 slightly less so; vent 4 was lightly splashing. Dominant spouting alternated between vent 3, vent 1, and another vent not present on Gryc's sketch map (located a little east of vent 3). The "other" vent had periodic eruptions (e.g., 1310, 1314, 1317, and 1319) and occasionally shut down vent 3 activity. When vent 3 re-activated, spouting was initially about twice normal height. [Reference cited: Gryc, S. 2016 (dated 2015). Firehole Lake geyser delights (but which geyser is it?). Geyser Gazer Sput 29(6): 5-8.] Did a ~1.5 to 2 hour time lapse of this activity - see attachment. |