| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 16086 |
12 Sep 2020 @ 1352 |
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CraigC |
pressure pool up |
| 16085 |
12 Sep 2020 @ 1305 |
--- |
CraigC |
pressure pool up |
| 16065 |
11 Sep 2020 @ 1534 |
--- |
CraigC |
pressure pool is full |
| 15951 |
04 Sep 2020 @ 1003 |
--- |
TheHikingDude |
pool empty |
| 15929 |
02 Sep 2020 @ 0811 |
--- |
CraigC |
pressure pool up, small bubbling in GF |
| 15912 |
31 Aug 2020 @ 1201 |
--- |
CraigC |
pressure pool rising.
1202 bursting in GF |
| 15910 |
31 Aug 2020 @ 1122 |
--- |
CraigC |
pressure pool up, then fell, small bursting from GF |
| 15909 |
31 Aug 2020 @ 1040 |
--- |
CraigC |
pressure pool up, just dropped. small bubbling from gf |
| 15719 |
23 Aug 2020 @ 1247 |
23 Aug 2020 @ 1413 |
BrianR |
Overflowed water at various times in buildup to Grotto eruption, but never boiled. Pressure Pool had visible water ~ 95% of this time frame. This and South Grotto Fountain series of eruptions was due to Spa having a flowing runoff channel to the river and all three of its vents bubbling (I.e., it was trying to start at the same time as Grotto). Also Grotto Central Vents were active in this time frame when South Grotto Fountain was not erupting.
Demetri will provide notes on Startling during this time frame |
| 13539 |
04 Sep 2019 @ 1224 |
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c.barwin |
end time |
| 12835 |
28 Jul 2019 @ 0938 |
--- |
rbwhitaker |
Got over two feet tall then backed down to nothing |
| 12033 |
29 Jun 2019 @ 1454 |
--- |
Polly |
Wet around Grotto Fountain. |
| 11992 |
27 Jun 2019 @ 1712 |
27 Jun 2019 @ 2007 |
BrianR |
After aborted eruption, the Grotto system went into a stalled pattern. Grotto Fountain was in a continuous boil up to 2 ft ( mostly 1 ft and under) from 17:49 to 19:28, 19:34 to 1943, and 19:51 to 19:58. The “pressure pool” was rising and falling just barely in and out of view from 17:20 to 18:51, then staying always in view until Grotto Fountain finally erupted at 20:09. Grotto was silent except for three one minute grumbles during this time. All Spa vents were off and the pool rose only 3 inches during this time. |
| 11991 |
27 Jun 2019 @ 1708 |
27 Jun 2019 @ 1711 |
BrianR |
6 to 10 ft eruption aborted, no Grotto |
| 11336 |
23 May 2019 @ 1420 |
23 May 2019 @ 1521 |
Kyle |
as pressure pool rose and dropped Grotto Fountain bubbled/boiled to a height just above the height of it's cone for brief periods when the pressure pool was full and would stop when pressure pool level dropped |
| 11264 |
18 May 2019 @ 1348 |
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Mkeller |
Repeat of what happened at 12:56 |
| 11265 |
18 May 2019 @ 1256 |
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Mkeller |
Erupted to 3-4 feet for about 3 minutes. Grotto tried to start. Central Vents erupted instead. |
| 8982 |
25 Jun 2018 @ 1559 |
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BrianR |
“Pressure Pool” up at 15:59 through 16:06, 263 minutes after last Grotto. Grotto Fountain water to 3 ft at 16:01, no eruption prior to Grotto |
| 8981 |
25 Jun 2018 @ 1527 |
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BrianR |
“Pressure Pool” up at 15:27 through 15:31 no Grotto Fountain water. 231 minutes after last Grotto |
| 8980 |
24 Jun 2018 @ 1523 |
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BrianR |
“Pressure Pool” up 15:23 through 15:26, no Grotto Fountain water. 262 minutes after last Grotto |
| 7047 |
23 Sep 2017 @ 1600 |
23 Sep 2017 @ 1606 |
Polly |
Bubbles increasing to ~6 inches steady, then off 1606. |
| 3517 |
20 Aug 2016 @ 1931 |
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Kitt B |
Grotto Fountain ended at 1931 |
| 2533 |
11 Oct 2015 @ 1223 |
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Siegmund |
Bubbling vigorously 1223; boiling hard 1228-1231, but never got more than ~30cm high |
| 2151 |
14 Aug 2015 @ 1312 |
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JSJ |
Blipping at 1312 (Grotto & Rocket started at 1314). |
| 1656 |
28 May 2015 @ 1448 |
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mhreed |
Saw two distinct steam clouds from F&M. By the time I walked up to the Grotto area, Grotto Fountain was at 10 ft. and dying down. Not sure if missed or aborted eruption. |
| 1612 |
19 May 2015 @ 1347 |
19 May 2015 @ 1358 |
JSJ |
Intermittent small blipping to very low spouting from 1347 to 1358. No more after Grotto Geyser eruption start at 1358. |
| 1005 |
29 Aug 2008 @ 0000 |
29 Aug 2008 @ 2359 |
BoekelUpload |
|
| 1352 |
09 Jun 2007 @ 0900 |
09 Jun 2007 @ 0909 |
BoekelUpload |
9:0x |
| 3879 |
03 Jul 2006 @ 0700 |
03 Jul 2006 @ 1545 |
Tara |
Grotto Fountain had been having periodic boiling episodes since sometime before 0700. These episodes alternated with eruptions by South Grotto Fountain. There were three stronger episodes at 0711, 1100, and 1400. These occurred midway between hourly Giant hot periods. When Grotto Fountain finally did erupt, it was weak and lasted only 5 minutes, but Grotto did follow at 1548. |
| 15329 |
19 Nov 1996 @ 1103 |
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JarnoO |
overflowing heavily ~15-20 gpm |