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Observations for 2026 June 01


The boardwalks were especially slick in the morning, the whole way from Castle to Grand. Arrived at the end of a Turban eruption, and before the next one West Triplet began erupting. Forty-five minutes later, after about fifteen minute of heavy steaming, Rift too began erupting. The Rift eruption was short and the West Triplet was long, such that Rift ended only fifteen minutes after West Triplet ended.

The One Burst Grand eruption came on the next Turban start, which was also a Delay interval. It was backlit, but the wind was such that not much could be seen, other than it seemed tall.

2026-Jun-01 : 08:19:52 D0/T1C

 08:19:33	Turban	-0m19s
 08:19:52	B1	--- d=10m24s
 08:22:42	Vent	2m50s
 08:30:16	P1	10m24s
Vent & Turban continue

				     	ΣD=10m24s
	* * * * *
 06:35:55			d=28s 	
 06:46:59	West Triplet d=01h04m 
 06:52:11	Int: 16m16s	d=04m18s 	
 07:12:24	Int: 20m13s	d=03m46s 	
 07:30:27	Rift d=35m07s 
 07:32:01	Int: 19m37s	d=03m38s 	
 07:52:36	Int: 20m35s	d=03m27s 	
		     Turban: 26m57s

The other night, over in the Grand runoff channel between West Triplet and Rift, we heard some gurgling, and it looked like a small vent was active. This morning, before Rift began, I was able to confirm and photograph this feature. It appears to be what I called "Sput C-1" back in the early 1980s. To the left, the sput called "C-2" was also steaming heavily. I recall these only being active briefly, and I don't remember seeing them since the mid-1980s.

Sput C-1, at left end of crack in center of view.

After than, it was a mostly sunny but cold, windy wait on Geyser Hill. It had been 26 hours since the previous eruption of Beehive, so it seemed likely to erupt soon. After about an hour, with little indication of an eminent eruption, Beehive suddenly had a large surge as if starting to erupt. That didn't happen, but after a pause of about five seconds, a second surge initiated an eruption. It was nice a tall despite the wind, and lasted almost 5-3/4 minutes.

In the afternoon it was sunny, but still windy and a bit cool. West Triplet erupted about an hour after arrival, and the duration was less than a half hour, so no Rift eruption. But that meant we would probably get to wait a couple of hours before Grand would attempt to erupt. And it did.

During that time there was also a short Castle minor eruption, and a Bulger major eruption with not even steam from Bulger's Hole.

The One Burst Grand Eruption came on a Turban eruption interval which was six seconds short of being a Delay Interval. Despite the wind, the eruption was nice and tall at first, but turned into Big Sawmill for the last few minutes. West Triplet never erupted, but did rise up in the vent to only drop below visibility, all within about a minute.

2026-Jun-01 : 16:22:43 G1Q

 16:22:43	B1	--- d=11m21s
 16:23:04	Vent Ovfl	0m21s
 16:23:34	Turban	0m51s
 16:25:34	Vent	2m51s
 16:34:04	P1	11m21s
 16:35:28	V&T Quit	12m45s

				     	ΣD=11m21s
	* * * * *
 14:00:59			
 14:19:30	Int: 18m31s	d=03m51s 	
 14:27:53	West Triplet d=28m56s 
 14:41:02	Int: 21m32s	d=04m23s 	
 15:00:26	Int: 19m24s	d=03m15s 	
 15:20:17	Int: 19m51s	d=03m47s 	
 15:39:18	Int: 19m01s	d=03m05s 	
 15:57:49	Int: 18m31s	d=03m35s 	
		      Grand: 24m54s