| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 21910 |
10 Jun 2022 @ 2131 |
--- |
Forestbewithyou |
Below overflow and calm |
| 21720 |
04 Jun 2022 @ 1109 |
--- |
Detour66 |
Water level approximately 3 feet lower then previous observation, no vent activity. |
| 21716 |
04 Jun 2022 @ 0947 |
--- |
Detour66 |
Bubbling from one vent, and slowly filling at 09:47 |
| 21552 |
28 May 2022 @ 1145 |
--- |
Graham |
Full with strong single boil. No change by 1353. |
| 21312 |
16 May 2022 @ 1124 |
--- |
Brando |
Since the last observation, spa has dropped ~2 feet and no more bubbling |
| 21309 |
16 May 2022 @ 1048 |
--- |
Brando |
Pool nearly full and boiling from left vent |
| 19910 |
06 Oct 2021 @ 1001 |
--- |
Darcie |
NO visible water at all |
| 19490 |
11 Sep 2021 @ 1909 |
--- |
Graham |
still ie at this time. |
| 19479 |
11 Sep 2021 @ 1610 |
--- |
User34 |
Three points of boiling and about to start overflowing |
| 18677 |
27 Jul 2021 @ 0346 |
--- |
Kyle |
full and overflowing. rail and adjacent bike path are wet |
| 17856 |
16 Jun 2021 @ 1925 |
16 Jun 2021 @ 1956 |
CrisG |
water rising post Grotto. Boiling from up to 2 vents. Vents stopped just as overflow was starting at 1954. Pool now dropping.. |
| 17679 |
11 Jun 2021 @ 0845 |
--- |
TheHikingDude |
Spa was 2 feet below overflow. No boils or bubbling. Just as quiet as the Grotto platform |
| 17542 |
07 Jun 2021 @ 2058 |
--- |
Craigmon99 |
Off and low |
| 17499 |
06 Jun 2021 @ 0640 |
--- |
CraigC |
low pool, North vent boiling vigorously, small bubbling from southern most vent. 649 boiling began on middle vent |
| 17480 |
05 Jun 2021 @ 1653 |
--- |
CraigC |
start of overflow |
| 17471 |
05 Jun 2021 @ 0934 |
--- |
CraigC |
went into overflow |
| 17432 |
04 Jun 2021 @ 1227 |
--- |
CraigC |
in overflow |
| 16908 |
22 Apr 2021 @ 1621 |
--- |
Micah Kipple |
All three vents have turned on. Just waiting for the first burst. |
| 16435 |
15 Oct 2020 @ 1840 |
15 Oct 2020 @ 1915 |
William |
pool level barely within view. viewed at 18:40 and then again at 19:15. |
| 16263 |
26 Sep 2020 @ 1504 |
--- |
Ajw |
pool full with mild bubbling in center. |
| 16249 |
24 Sep 2020 @ 1905 |
--- |
William |
water level barely visible in crater, runoff area contains water in a few areas |
| 16205 |
20 Sep 2020 @ 1115 |
--- |
William |
starting to boil from NV and rise from about 2' below inner rim |
| 16172 |
18 Sep 2020 @ 1042 |
--- |
CraigC |
rising, about 2 feet below inner rim, strong boiling from north vent |
| 16163 |
18 Sep 2020 @ 0738 |
--- |
CraigC |
as empty as I have ever observed, could not see the water level |
| 16084 |
12 Sep 2020 @ 1106 |
--- |
TheHikingDude |
Pool full. gently boiling |
| 16055 |
11 Sep 2020 @ 1007 |
--- |
CraigC |
full pool, boiling in north vent.
1020 small boil from south |
| 13045 |
05 Aug 2019 @ 1737 |
--- |
KarlH |
Water is up approx 3 hours into Grotto eruption. |
| 12103 |
04 Jul 2019 @ 0855 |
04 Jul 2019 @ 0900 |
Detour66 |
Spa is overflowing, left and center vents active. |
| 11673 |
09 Jun 2019 @ 1318 |
--- |
User34 |
In overflow, boiling from all three vents |
| 11537 |
03 Jun 2019 @ 0604 |
--- |
Kyle |
runoff channel is wet and water is pooled in sinter around the crater |
| 11132 |
29 Apr 2019 @ 1516 |
--- |
Polly |
Spa up with strong bubbling from 2 vents and tiny intermittent bubbles from the third |
| 10928 |
27 Jan 2019 @ 0845 |
--- |
Graham |
Full and blooping |
| 10546 |
04 Oct 2018 @ 0827 |
--- |
William |
Water level high with two consistent areas of 2’ diameter boil in the center of pool. |
| 10484 |
27 Sep 2018 @ 1904 |
--- |
Tara |
Overflowing and boiling from both vents. |
| 10060 |
06 Sep 2018 @ 0917 |
--- |
Micah Kipple |
Rapidly filling with a constant boil in the left vent. Possible startup sequence. |
| 9722 |
15 Aug 2018 @ 0820 |
--- |
c.barwin |
full and close to overflowing |
| 9674 |
12 Aug 2018 @ 1004 |
--- |
Tom C. |
Spa was in overflow from 1004 through Grotto start (1019). Boiling in left vent only during this period. |
| 8817 |
19 Jun 2018 @ 0945 |
--- |
Polly |
Spa full with one very small boil. |
| 8968 |
08 Jun 2018 @ 1331 |
--- |
Polly |
Spa overflowing |
| 8528 |
07 Jun 2018 @ 1600 |
--- |
Polly |
Spa filling quickly. |
| 8232 |
18 May 2018 @ 2040 |
--- |
Tara |
Full and bubbling, recently started overflowing. |
| 8156 |
11 May 2018 @ 1120 |
11 May 2018 @ 1126 |
Tara |
Rising slowly with frequent heavy bubbling. |
| 8148 |
10 May 2018 @ 1910 |
10 May 2018 @ 1935 |
Tara |
Was overflowing and boiling at 1910; after Rocket, water was very calm and about 2 feet down with the level gradually dropping. |
| 6365 |
14 Sep 2017 @ 0706 |
--- |
Graham |
Overflowing. |
| 6253 |
10 Sep 2017 @ 0950 |
--- |
Polly |
Puddles around edges. Left Vent bubbly with some small burts. |
| 4556 |
27 Jul 2017 @ 1335 |
27 Jul 2017 @ 1347 |
S.Glasser |
filling with decent boils from left vent, no chasms in water level in 10m |
| 4086 |
12 May 2017 @ 1720 |
--- |
mhreed |
Low pool and boiling heavily from left vent. No right vent. |
| 4019 |
29 Apr 2017 @ 1010 |
--- |
RMichaels |
In overflow (grotto off since ~0730). |
| 2947 |
02 Jun 2016 @ 1449 |
--- |
BobInSLC |
empty but wet runoff channels |
| 2813 |
04 May 2016 @ 1058 |
--- |
udo |
Post eruptive at 1058. Runoff channel wet, water level low. Water was high approx 0930. |
| 2750 |
17 Apr 2016 @ 1700 |
--- |
RMichaels |
Spa was overflowing and had several widely spaced foot-high bubbles, but didn't progress to an actual eruption. |
| 976 |
25 Jun 2008 @ 0000 |
25 Jun 2008 @ 2359 |
BoekelUpload |
ie most of day |
| 853 |
03 Jul 2006 @ 0700 |
--- |
Tara |
Spa full and pulsating at 0700; one burst to about 5 feet seen but not in eruption. |
| 16757 |
22 Oct 1998 @ 0000 |
22 Oct 1998 @ 2359 |
JarnoO |
active |
| 16721 |
19 Sep 1998 @ 0000 |
19 Sep 1998 @ 2359 |
JarnoO |
ie; {no further details given} |
| 15805 |
17 Feb 1997 @ 0000 |
17 Feb 1997 @ 2359 |
JarnoO |
active |
| 15245 |
20 Jun 1996 @ 0000 |
20 Jun 1996 @ 2359 |
JarnoO |
active |
| 14396 |
28 Sep 1995 @ 0000 |
28 Sep 1995 @ 2359 |
JarnoO |
active |
| 14335 |
22 Jul 1995 @ 0000 |
22 Jul 1995 @ 2359 |
JarnoO |
active |
| 14316 |
01 Jun 1995 @ 0000 |
01 Jun 1995 @ 2359 |
JarnoO |
active |
| 14289 |
17 Mar 1995 @ 0000 |
17 Mar 1995 @ 2359 |
JarnoO |
active |
| 12343 |
31 Oct 1993 @ 0815 |
--- |
JarnoO |
drained and finished at 0815 |
| 5581 |
22 Aug 1992 @ 0000 |
22 Aug 1992 @ 2359 |
JarnoO |
active |