Last Known Eruption
38d 16h 32m ago

Interval Statistics

Interval Count16
Min42m
Max9y 249d 16h 52m
Mean1y 272d 23h 41m
Median9d 11h 12m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
19843 02 Oct 2021 @ 0615 --- SteveO Down about a foot and bubbling, refilling from Sawmill Deep Drain.
19828 01 Oct 2021 @ 1456 --- SteveO Water drained out of sight and quiet. Sawmill Deep Drain.
19825 01 Oct 2021 @ 0854 --- SteveO Water drained out of sight and noisy. Sawmill Deep Drain.
19821 01 Oct 2021 @ 0630 --- SteveO Full and overflowing down past the boardwalk.
19797 30 Sep 2021 @ 0614 30 Sep 2021 @ 0643 SteveO Near overflow. Overflow is well past the boardwalk at 0643.
19794 29 Sep 2021 @ 1715 --- SteveO Water drained out of sight and boiling. Sawmill Deep Drain.
19789 29 Sep 2021 @ 1200 --- SteveO Water drained out of sight, Sawmill Deep Drain.
19775 29 Sep 2021 @ 0642 --- SteveO water drained out of sight and quiet.
19763 28 Sep 2021 @ 0645 28 Sep 2021 @ 1005 SteveO Twilight down a few inches and splashing. Sawmill is at 0642 with frequent short eruptions of Tardy, suspect Sawmill has been in eruption for a while. Twilight slowly rising, reached the base of the pillars at approximately 0900. 0955 water level in Twilight dropping, 1004 drained out of sight.
19754 27 Sep 2021 @ 0650 --- SteveO Water drained out of sight and quiet. Sawmill Deep Drain.
19742 26 Sep 2021 @ 1129 --- Graham Water below the pillars and calm. Looks like we have a long Sawmill in progress and will go into deep drain when Sawmill and Spasmodic stop. After both quit, Twilight came up a bit and Spasmodic came back on. After the short Spasmodic eruption, Twilight dropped to empty.
19734 26 Sep 2021 @ 0650 --- SteveO Water drained out of sight and boiling. Sawmill Deep Drain.
19727 25 Sep 2021 @ 0845 --- SteveO Drained out of sight and quiet, Sawmill Deep drain.
19684 22 Sep 2021 @ 0830 --- SteveO Down about a 6 inches with frequent bubbling.
19674 21 Sep 2021 @ 0910 21 Sep 2021 @ 1022 SteveO Water level down about an inch and slowly dropping. Water level drained out of sight at 1022. Sawmill Deep Drain
19602 16 Sep 2021 @ 1440 --- Graham Long Sawmill and Spasmodic eruptions in progress. The rock pillars are all above the water level as it has been dropping slowly. 1514 dropping faster now Spasmodic quit. Sawmill still ie. 1516 at top of inner crater. 1519 water out of sight.
19327 06 Sep 2021 @ 0848 --- User34 Not quite all the way full
19129 28 Aug 2021 @ 1808 --- User34 An inch below full
18976 21 Aug 2021 @ 1430 --- Tara low, water level not visible, some splashing
18957 18 Aug 2021 @ 1041 --- aferrara Drained, occasional vigorous boiling just visible
18882 10 Aug 2021 @ 0950 --- Tara water level down, splashing
18865 08 Aug 2021 @ 0823 --- WillBoekel no water visible
18846 06 Aug 2021 @ 0819 --- deanl deep drain, no water visible
18839 05 Aug 2021 @ 1038 --- deanl in deep drain with no water visible - Sawmill ended by 1033
18822 04 Aug 2021 @ 1205 --- deanl almost full after deep drain
18733 30 Jul 2021 @ 0601 --- JimS Pool empty.
18674 26 Jul 2021 @ 1502 --- SteveO Starting to drain, empty before 1520. Sawmill Deep Drain.
18672 26 Jul 2021 @ 0553 --- SteveO Drained and boiling.
18652 25 Jul 2021 @ 1530 --- SteveO Twilight Spring drained, Sawmill deep drain.
18646 25 Jul 2021 @ 0642 --- SteveO Twilight drained and quiet. Sawmill Deep Drain.
18624 24 Jul 2021 @ 1515 24 Jul 2021 @ 1740 SteveO Twilight Spring drained and boiling out of sight. Sawmill Deep Drain. Twilight Spring is almost refilled.
18617 24 Jul 2021 @ 0632 --- SteveO Twilight Spring drained, Sawmil Deep Drain.
18608 23 Jul 2021 @ 1731 --- Ben VL Empty. DD after earlier Sawmill.
18601 23 Jul 2021 @ 1015 --- SteveO Twilight Spring drained and boiling, water level out of sight. Sawmill deep drain.
18586 22 Jul 2021 @ 1700 --- SteveO Returned to normal level from deep drain.
18574 22 Jul 2021 @ 1150 --- SteveO Starting to drop, deep drain. Sawmill still erupting.
18561 21 Jul 2021 @ 1227 --- SteveO Drained, Sawmill deep drain.
18556 21 Jul 2021 @ 0612 --- SteveO Is full, Sawmill not in a deep drain.
18549 20 Jul 2021 @ 0824 20 Jul 2021 @ 1600 SteveO 0824 Twilight Spring was splashing from low water level. Slowly rising during Sawmill's eruption to about 9" below rim. After Sawmill ended Twilight dropped a to a low level and started splashing again. At 1600 Twilight was down 2".
18542 20 Jul 2021 @ 0629 --- JimS Pool empty.
18528 19 Jul 2021 @ 1814 --- SteveO Draining.
18519 19 Jul 2021 @ 0832 --- SteveO Drained, Sawmill deep drain.
18512 18 Jul 2021 @ 1713 --- SteveO Drained, Sawmill deep drain
18479 17 Jul 2021 @ 1715 --- SteveO Almost to overflow after the deep drain.
18478 17 Jul 2021 @ 1549 --- Ben VL Water coming back up
18475 17 Jul 2021 @ 1434 --- SteveO Starting to drain.
18463 17 Jul 2021 @ 0532 --- SteveO Overflowing, Sawmill not in a deep drain.
18459 16 Jul 2021 @ 1827 16 Jul 2021 @ 1950 SteveO Fast recovery from the deep drain, down only about 3 inches. Reached overflow at 1950.
18456 16 Jul 2021 @ 1600 --- SteveO Started draining.
18449 16 Jul 2021 @ 0915 --- SteveO Almost to overflow from deep drain.
18441 16 Jul 2021 @ 0618 --- JimS No water visible.
18430 15 Jul 2021 @ 0554 15 Jul 2021 @ 0635 SteveO Down about 4 inches. Reached overflow at 0635. Spasmodic vents becoming active.
18424 14 Jul 2021 @ 1749 --- SteveO Looks to have drained earlier or just a partial drain. Down about a foot and is on its way up. Uncertain is quiet and steaming slightly.
18408 13 Jul 2021 @ 0910 --- SteveO Down 6 inches and dropping fast.
18406 13 Jul 2021 @ 0637 --- SteveO Down an inch.
18395 12 Jul 2021 @ 1830 --- SteveO Twilight has started dropping.
17818 15 Jun 2021 @ 1313 --- Craigmon99 Bubbling gently. 1/2 inch bubbles reach in height.
12866 29 Jul 2019 @ 1050 --- rbwhitaker Full but barely in overflow
3537 24 Aug 2016 @ 1425 24 Aug 2016 @ 1445 SteveO Twilight drained between 1425 & 1445, completely empty at 1445.
3512 19 Aug 2016 @ 1114 --- SteveO Started draining.
2235 01 Sep 2015 @ 1423 --- Micah Kipple Water hoes out of sight.
2236 01 Sep 2015 @ 1412 --- Micah Kipple Twilight began draining at this time.
2011 03 Aug 2015 @ 0252 --- Micah Kipple Beginning to drain at this time. Possibly indicating the sawmill group is going into a deep drain.
869 05 Sep 2013 @ 2212 --- Micah Kipple full at 2212 empty at 2302
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