| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 17837 |
15 Jun 2021 @ 1809 |
--- |
CrisG |
empty. |
| 12906 |
31 Jul 2019 @ 1935 |
31 Jul 2019 @ 2024 |
JSJ |
Closed intervals for posted eruptions. Unlike previous years, no fill and drain cycles. Water level never visible. |
| 11727 |
11 Jun 2019 @ 1638 |
--- |
CrisG |
Crater empty |
| 11696 |
10 Jun 2019 @ 1002 |
--- |
CrisG |
empty crater |
| 11656 |
08 Jun 2019 @ 1513 |
--- |
CrisG |
empty. |
| 11528 |
02 Jun 2019 @ 0932 |
--- |
Janet Jones |
The wash from Marmot Cave cleared gravel fro the solid sinter base all the way under the boardwalk and down to the Dwarfs. I didn’t get a chance to sit and wait for an eruption, but that wash wasn’t there a couple weeks ago as far as I recall. |
| 10902 |
24 Jan 2019 @ 0718 |
--- |
Graham |
Runoff channel snowed in |
| 10897 |
23 Jan 2019 @ 0725 |
--- |
Graham |
No eruption recently. snow in runoff channel |
| 10645 |
21 Oct 2018 @ 1132 |
--- |
rbwhitaker |
Water came up, small boiling, rocking pool, then dropped. No eruption. No bursts, anyway. |
| 10440 |
25 Sep 2018 @ 1114 |
--- |
Micah Kipple |
Fill. Strong boil. Drain. No eruption. |
| 10439 |
25 Sep 2018 @ 1103 |
--- |
Micah Kipple |
Fill. Boil. Drain. No eruption. |
| 10381 |
19 Sep 2018 @ 1022 |
--- |
Siegmund |
Empty. Still empty 1104. |
| 10246 |
16 Sep 2018 @ 0704 |
--- |
steve |
Rocking and overflowing followed by a drop but no splashing |
| 10144 |
11 Sep 2018 @ 1043 |
--- |
Tara |
Water came up with pulsing overflow and bubbles for about 1 minute and then dropped. |
| 10154 |
11 Sep 2018 @ 0905 |
--- |
Barbara Lasseter |
no visible water |
| 10025 |
04 Sep 2018 @ 1629 |
--- |
Janet Jones |
1629 - water rise. Sloshing and bouncing duriing a slower rise. 1630 - overflow with boilong but mo eruption. 1631 - drain. |
| 10012 |
03 Sep 2018 @ 1429 |
--- |
Micah Kipple |
Heavy surge to 10" but no bursting. Maybe an eruption? |
| 9530 |
07 Aug 2018 @ 1440 |
07 Aug 2018 @ 1443 |
JSJ |
Water rising at 1440. Pool pulsing with overflow, etc. No eruption. Water drained out-of-sight at 1443. |
| 9529 |
07 Aug 2018 @ 1419 |
07 Aug 2018 @ 1422 |
JSJ |
Water rising at late 1419. Pool pulsing, overflow, light roiling. No eruption. Water drained out-of-sight at late 1421 to early 1422. |
| 9528 |
07 Aug 2018 @ 1348 |
07 Aug 2018 @ 1400 |
JSJ |
Cycles involving rising water, pool pulsing with overflow, bubbling and low roiling, then water lowering out of sight: 1348 to 1350 (no eruption), 1359 to 1400 (no eruption). Closed interval for cycles: 11m. |
| 9527 |
07 Aug 2018 @ 1151 |
07 Aug 2018 @ 1253 |
JSJ |
Cycles involving rising water, pool pulsing with overflow, bubbling and low roiling, then water lowering out of sight: 1151 to 1153, 1203 to 1205, 1213 to 1216, 1226 to 1228, 1239 to 1242, 1251 to 1253. Closed intervals for cycles: 12m, 10m, 13m, 13m, 12m. |
| 9476 |
05 Aug 2018 @ 1458 |
--- |
Tara |
Pulsing, bubbling, and overflowing in progress. Water level dropped out of sight at 1459. |
| 9362 |
01 Aug 2018 @ 0805 |
--- |
Barbara Lasseter |
crater empty |
| 9345 |
31 Jul 2018 @ 1609 |
--- |
jazzknick |
Fluctuating overflow and rocking followed by drain. Small bubbling st front edge |
| 9282 |
24 Jul 2018 @ 1607 |
--- |
WillBoekel |
empty. |
| 8956 |
30 Jun 2018 @ 1623 |
--- |
Tara |
Bubbling with pulsing overflow. |
| 8904 |
27 Jun 2018 @ 1249 |
27 Jun 2018 @ 1311 |
Tara |
Down about 3 inches at 1249, full at 1311. |
| 8717 |
16 Jun 2018 @ 1125 |
--- |
CrisG |
full and overflowing |
| 8656 |
13 Jun 2018 @ 1431 |
13 Jun 2018 @ 1433 |
Tara |
Pulsating and overflowing in progress at 1431, water level dropped out of sight at 1433. |
| 8655 |
13 Jun 2018 @ 1359 |
--- |
Tara |
Crater empty. |
| 8470 |
05 Jun 2018 @ 1915 |
--- |
underarockphoto |
Overflow reached. |
| 8099 |
04 May 2018 @ 1144 |
--- |
Janet Jones |
No microbes growing in the overflow channel or in the vent. Water level at 3-4" below overflow. |
| 3384 |
28 Jul 2016 @ 1027 |
--- |
WillBoekel |
empty. no water visible |
| 3241 |
07 Jul 2016 @ 1306 |
--- |
udo |
drained |
| 2909 |
28 May 2016 @ 1550 |
--- |
WillBoekel |
down 1 inch |
| 2773 |
22 Apr 2016 @ 1006 |
--- |
WillBoekel |
down about 4 inches |
| 2135 |
16 Aug 2015 @ 1010 |
16 Aug 2015 @ 1053 |
JSJ |
Full & slightly pulsing at 1010. Stronger pulsing with overflow from 1012 to 1016. Drain at 1016. Noticed it was full at 1053. |
| 2072 |
09 Aug 2015 @ 1001 |
--- |
JSJ |
Pool full. |
| 1996 |
31 Jul 2015 @ 1027 |
--- |
Tara |
pulsing and bubbling in progress |
| 1987 |
29 Jul 2015 @ 1319 |
--- |
Tara |
Pulsing and bubbling with overflow. I saw it in progress and it lasted only a few more seconds before the water level dropped nearly out of sight. |
| 1917 |
16 Jul 2015 @ 1956 |
--- |
Jake |
empty. |
| 1862 |
07 Jul 2015 @ 1512 |
--- |
Micah Kipple |
Empty. |
| 1785 |
23 Jun 2015 @ 1913 |
--- |
bhoppe |
empty at 1913 |
| 1777 |
22 Jun 2015 @ 1921 |
--- |
WillBoekel |
about 3 inches below overflow |
| 1773 |
21 Jun 2015 @ 1130 |
--- |
udo |
Pulsed for several minutes and drained at 1130 |
| 1759 |
18 Jun 2015 @ 1632 |
--- |
WillBoekel |
empty. |
| 1746 |
16 Jun 2015 @ 1314 |
--- |
bhoppe |
empty at 1314 |
| 1737 |
14 Jun 2015 @ 1140 |
--- |
WillBoekel |
half full |
| 1736 |
14 Jun 2015 @ 0921 |
--- |
WillBoekel |
empty. |
| 1697 |
07 Jun 2015 @ 1639 |
--- |
WillBoekel |
empty. |
| 1206 |
03 Jun 2014 @ 1219 |
03 Jun 2014 @ 1220 |
JSJ |
Marmot Cave Geyser's vent was filled with water & was bouncing slightly at 1219 on 3 June 2014. The pool completely drained at 1220. |
| 1059 |
03 May 2014 @ 2049 |
--- |
WillBoekel |
2049 resume overflow |
| 1057 |
03 May 2014 @ 2020 |
--- |
WillBoekel |
At 2020 water was ~3-4 inches below overflow |
| 1056 |
02 May 2014 @ 1529 |
--- |
WillBoekel |
Drained at 1529 water seen refilling at 1530 and possible suds on the pool upon refill |
| 761 |
04 Jun 2011 @ 1422 |
--- |
Janet Jones |
Marmot Cave Geyser\r\n1420 - water level dropped below overflow.\r\n1422 - pulsing, still below overflow.\r\n1426 - water level back to overflow \r\n1428 - left the area |
| 16763 |
30 Oct 1998 @ 1037 |
--- |
JarnoO |
surging, not actual erupt |
| 16700 |
15 Aug 1998 @ 0836 |
--- |
JarnoO |
low pool |
| 16688 |
15 Jul 1998 @ 0000 |
15 Jul 1998 @ 2359 |
JarnoO |
active |
| 16687 |
14 Jul 1998 @ 0000 |
14 Jul 1998 @ 2359 |
JarnoO |
across from Arrowhead Spring: active all day |
| 16646 |
26 May 1998 @ 0000 |
26 May 1998 @ 2359 |
JarnoO |
UNNG across from Arrowhead; active |
| 16605 |
18 Mar 1998 @ 0000 |
18 Mar 1998 @ 2359 |
JarnoO |
UNNG below Inverted; active |