Last Known Eruption
203d 5h 44m ago

Latest Eruptions

Eruption DurationInterval
28 Aug 2018 @ 173420m
28 Aug 2018 @ 1714 ie38m
28 Aug 2018 @ 1636 ie18m
28 Aug 2018 @ 1618 ie2h 8m
28 Aug 2018 @ 1410 ie21m
28 Aug 2018 @ 1349 ie65d 1h 22m
24 Jun 2018 @ 12276m 1d 2h 31m
23 Jun 2018 @ 09564m 2d 16h 18m
20 Jun 2018 @ 1738 ie3d 8h 6m
17 Jun 2018 @ 093214d 20h 19m
02 Jun 2018 @ 131327m
02 Jun 2018 @ 12462h 26m
02 Jun 2018 @ 10201h 21m
02 Jun 2018 @ 085922m
02 Jun 2018 @ 083716m
02 Jun 2018 @ 08214d 18h 54m
28 May 2018 @ 13274m
28 May 2018 @ 13233m
28 May 2018 @ 13201d 2h 25m
27 May 2018 @ 1055 ie1d 1h 50m
26 May 2018 @ 09051d 14h 45m
24 May 2018 @ 1820 ie9d 8h 46m
15 May 2018 @ 093430s 1d 19h 50m
13 May 2018 @ 134423h 15m
12 May 2018 @ 142930s 3d 18h 12m
08 May 2018 @ 20171h 13m
08 May 2018 @ 19042m
08 May 2018 @ 19023m
08 May 2018 @ 18596h 21m
08 May 2018 @ 12381m 20s 2m
08 May 2018 @ 123638s 3m
08 May 2018 @ 123334s 2m
08 May 2018 @ 123127s 5m
08 May 2018 @ 12261m 6m
08 May 2018 @ 122010m
08 May 2018 @ 1210 ie2d 2h 41m
06 May 2018 @ 0929 ie11y 253d 55m
29 Aug 2006 @ 0834~5m 8y 355d 14h 45m
09 Sep 1997 @ 17495d 8h 35m
04 Sep 1997 @ 09143d 16h 48m
31 Aug 1997 @ 16261d 6h 0m
30 Aug 1997 @ 10261d 20h 24m
28 Aug 1997 @ 14024m 6d 19h 56m
21 Aug 1997 @ 18068h 47m
21 Aug 1997 @ 091916h 52m
20 Aug 1997 @ 162722h 10m
19 Aug 1997 @ 18177h 40m
19 Aug 1997 @ 10378m 14h 52m
18 Aug 1997 @ 1945 A8h 10m
18 Aug 1997 @ 113516h 5m
17 Aug 1997 @ 1930 ie8h 15m
17 Aug 1997 @ 11151d 2h 46m
16 Aug 1997 @ 08294m
16 Aug 1997 @ 082518h 35m
15 Aug 1997 @ 13508+m19h 50m
14 Aug 1997 @ 18008m 1d 4h 15m
13 Aug 1997 @ 13458m 1d 18h 50m
11 Aug 1997 @ 1855 ie1d 9h 25m
10 Aug 1997 @ 093020h 43m
09 Aug 1997 @ 12476d 1h 17m
03 Aug 1997 @ 11303m
03 Aug 1997 @ 11276m 1d 1h 39m
02 Aug 1997 @ 09488+m15h 43m
01 Aug 1997 @ 18057h 25m
01 Aug 1997 @ 104019h 55m
31 Jul 1997 @ 14455m
31 Jul 1997 @ 14407+m1d 42m
30 Jul 1997 @ 13586m 21h 13m
29 Jul 1997 @ 16458m 7h 40m
29 Jul 1997 @ 09058m 21h 15m
28 Jul 1997 @ 11507m 30m
28 Jul 1997 @ 11208+m21h 5m
27 Jul 1997 @ 14151d 1h 55m
26 Jul 1997 @ 12207+m1d 3h 30m
25 Jul 1997 @ 085023h 45m
24 Jul 1997 @ 09058m 17h 5m
23 Jul 1997 @ 16007h 25m
23 Jul 1997 @ 083517h 25m
22 Jul 1997 @ 15101d 0m
21 Jul 1997 @ 15107m 4h 25m
21 Jul 1997 @ 10451d 1h 30m
20 Jul 1997 @ 091516h 0m
19 Jul 1997 @ 17151d 5h 15m
18 Jul 1997 @ 12002d 3h 45m
16 Jul 1997 @ 081522h 20m
15 Jul 1997 @ 09558+m4m
15 Jul 1997 @ 095110h 13m
14 Jul 1997 @ 23387m 10s 1d 7h 5m
13 Jul 1997 @ 16331d 2h 18m
12 Jul 1997 @ 141514h 36m
11 Jul 1997 @ 23396m 13s 7h 29m
11 Jul 1997 @ 16106+1d 2h 15m
10 Jul 1997 @ 13555m
10 Jul 1997 @ 135020h 28m
09 Jul 1997 @ 17224m 2m
09 Jul 1997 @ 17206-8m7d 23h 40m
01 Jul 1997 @ 17405m 333d 4h 6m
02 Aug 1996 @ 13347m 12s 4d 23h 37m
28 Jul 1996 @ 135712d 21h 27m
15 Jul 1996 @ 16305h 0m

Interval Statistics

Interval Count100
Min2m
Max11y 253d 55m
Mean80d 19h 1m
Median19h 52m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
9942 30 Aug 2018 @ 0733 --- cb bubbling and steamy way below eye level.
9939 29 Aug 2018 @ 1212 29 Aug 2018 @ 1830 bbev Much less activity than yesterday. No water seen during this period, only steam and sound of rumbling/boiling from deep in crater.
9919 28 Aug 2018 @ 1339 28 Aug 2018 @ 1758 bbev Rumbling and steamy from deep in crater. Wall of crater is wet half way to top. Sounds of splashing heard nearly continually during this period and "eruptions" where noted when splashing continued and was seen within or over top of the crater. Store was not too busy so I was able to keep fairly constant eye on it.
9103 10 Jul 2018 @ 0919 --- udo Gurgling intermittently.
8954 30 Jun 2018 @ 0837 --- bbev Pool has not filled in past 3 days I have been at bookstore. No visible water or mud seen in that time. Continuous sound of bubbling/boiling coming from deep in crater. Has not been a continuous watch throughout the days.
8853 23 Jun 2018 @ 1500 23 Jun 2018 @ 1520 Tara Water level down but still visible from bookstore. Constant boiling and blurping with occasional small bursts to ~6-8 inches.
8815 19 Jun 2018 @ 1523 --- bbev increased boiling, pool has turned muddy.
8814 19 Jun 2018 @ 1312 --- bbev 1' from top of crater, clear water. Some bubbling in left (east), center of pool.
8779 19 Jun 2018 @ 0725 --- cb Steamvalve Spring water is high and fairly clear.
8759 18 Jun 2018 @ 0745 18 Jun 2018 @ 1340 JSJ Watched Steamvalve Spring for 6 hours, with brief side excursions to Back & Porcelain Basins. No eruptions. Water level very slowly rising until late morning. Water level ~stable in late morning and early afternoon. Noticed light bubbling in one area of pool in the early afternoon.
8565 03 Jun 2018 @ 2113 --- Siegmund Audible splashing at depth, but no water visible at the surface.
8078 05 May 2018 @ 1100 --- sfavor pool in woods by library (bathtub?) drained and erupting muddy water
4702 09 Jul 1990 @ 1800 --- research-mab 7/9/1990 Steamvalve Geyser has been remarkable this summer for its lack of activity.
4693 21 Jun 1988 @ 1800 --- research-mab 6/21/1988 Steamvalve is erupting ~ 4 hr intervals to approx 2 meters high. Muddy water overflowing to trail by Emerald Spring.
4687 14 Jul 1987 @ 1800 --- research-mab 7/14/1987 Steamvalve Geyser having strong eruptions 2-3x / day (10-12ft)
4853 19 Aug 1985 @ 1800 --- research-mab 8/19/1985 Interesting Notes: Steamvalve seems to erupt when the pool level is near the top of a small rock near the big triangle size rock on the opposite side of the overflow side.
5142 19 Aug 1985 @ 1800 --- research-mab 8/19/1985 Interesting Notes: Steamvalve seems to erupt when the pool level is near the top of a small rock near the big triangle size rock on the opposite side of the overflow side.
5183 19 Aug 1985 @ 1800 --- research-mab 8/19/1985 Summary of Steamvalve Geyser: It seems to erupt every 3 ½ to 4 hours (being the interval). The eruption is preceded by bubbling in the pool. The eruption is very much like a small Equinus [sic] but with mucky water. The height of it goes up to 10-12 feet or so, with the eruption going for 5 or 6 minutes. It takes about 2 minutes to overflow and after the eruption there is a rapid drain of 2/3 of the pool, which takes about 1 ½ minutes. Then the drain is very, very slow if at all. It is very much like a small Equinus. [sic]
4680 19 Oct 1984 @ 0000 --- research-mab 10/19/1984 Steamvalve Spring has recently erupted as per runoff channel through melted snow. Lee Whittlesey
7611 11 Feb 1984 @ 1800 --- research-mab 02/11/1984 Steamvalve Geyser – Active; apparently only 3-4 times each 24 hrs.
4622 02 Jun 1981 @ 0000 --- research-mab 6/2/1981 Steamvalve Spring – Periodically erupts 2 to 6 feet high with opaque gray white water. Debut of Steamvalve occurred on February 25. Mud was sprayed all over restroom and to the tops of nearby lodgepoles.
No attachments for this geyser.
Baseline does not exist.


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