Last Known Eruption
2d 3h 56m ago

Latest Eruptions

Eruption DurationInterval
12 Oct 2019 @ 1532 ie18d 21h 9m
23 Sep 2019 @ 182310m 4s 21m
23 Sep 2019 @ 18028m 52s 17m
23 Sep 2019 @ 17456m 56s 11d 10h 14m
12 Sep 2019 @ 07316m 11h 23m
11 Sep 2019 @ 20087h 45m
11 Sep 2019 @ 122317m
11 Sep 2019 @ 120620m
11 Sep 2019 @ 1146 ie17m
11 Sep 2019 @ 1129 ie1h 6m
11 Sep 2019 @ 1023 ie1h 0m
11 Sep 2019 @ 0923 ie21h 6m
10 Sep 2019 @ 12175m 5d 2h 21m
05 Sep 2019 @ 0956 ie13h 54m
04 Sep 2019 @ 2002 ie4h 24m
04 Sep 2019 @ 1538 ie46m
04 Sep 2019 @ 1452 ie20m
04 Sep 2019 @ 1432 ie4h 26m
04 Sep 2019 @ 100617m
04 Sep 2019 @ 094914m
04 Sep 2019 @ 093518m
04 Sep 2019 @ 0917 ns1d 2h 11m
03 Sep 2019 @ 0706 ie21h 4m
02 Sep 2019 @ 1002 ie8d 17h 30m
24 Aug 2019 @ 163213m 40s 17m
24 Aug 2019 @ 161512m 33s 13m
24 Aug 2019 @ 1602 ie1d 20h 11m
22 Aug 2019 @ 1951 ie3h 57m
22 Aug 2019 @ 1554 ie5d 23h 13m
16 Aug 2019 @ 1641 ie2d 50m
14 Aug 2019 @ 1551 ie3d 7h 0m
11 Aug 2019 @ 0851 ie8d 21h 12m
02 Aug 2019 @ 1139 ie30d 16h 59m
02 Jul 2019 @ 184010m 22s 22m
02 Jul 2019 @ 18188m 40s 19d 2h 29m
13 Jun 2019 @ 154910m 42s 14m
13 Jun 2019 @ 1535 ie48m
13 Jun 2019 @ 1447 ie1h 38m
13 Jun 2019 @ 1309 ie23h 49m
12 Jun 2019 @ 13203h 6m
12 Jun 2019 @ 1014 ie36m
12 Jun 2019 @ 0938 ie5d 9m
07 Jun 2019 @ 0929 ie17h 16m
06 Jun 2019 @ 1613 ie10d 6h 6m
27 May 2019 @ 100732d 22h 57m
24 Apr 2019 @ 1110 ie18h 32m
23 Apr 2019 @ 163825m
23 Apr 2019 @ 161310m 2s 183d 3h 10m
22 Oct 2018 @ 130313m 49s 19m
22 Oct 2018 @ 1243:1013m 38s 12m
22 Oct 2018 @ 1231 ie26d 19h 23m
25 Sep 2018 @ 1708 ie3d 2h 58m
22 Sep 2018 @ 1410 ie17d 1h 0m
05 Sep 2018 @ 1310 ie622h 41m
04 Sep 2018 @ 1428:5822m 37s
04 Sep 2018 @ 1406:218m 32s 7d 3h 42m
28 Aug 2018 @ 1024 ie5d 16h 24m
22 Aug 2018 @ 1800 ie12d 3h 12m
10 Aug 2018 @ 1447:288m 21s 23m 3s
10 Aug 2018 @ 1424:257m 20s 41d 20h 9m
29 Jun 2018 @ 1815 ie1d 23h 49m
27 Jun 2018 @ 1826 ie16d 8h 3m
11 Jun 2018 @ 1023 ie19h 1m
10 Jun 2018 @ 1522 ns3d 4h 34m
07 Jun 2018 @ 1048 ie19h 24m
06 Jun 2018 @ 1524 ns226d 21h 58m
22 Oct 2017 @ 1726 ns1d 23h 48m
20 Oct 2017 @ 1738 ie48d 5h 59m
02 Sep 2017 @ 1139 ie35m
02 Sep 2017 @ 1104 ie13d 17h 28m
19 Aug 2017 @ 1736 ie50m
19 Aug 2017 @ 1646 ns64d 2h 12m
16 Jun 2017 @ 14341d 22h 25m
14 Jun 2017 @ 1609 ns5d 22h 42m
08 Jun 2017 @ 17271d 22h 8m
06 Jun 2017 @ 1919 ie247d 8h 38m
02 Oct 2016 @ 1041 ie15d 16h 37m
16 Sep 2016 @ 1804 ns2h 17m
16 Sep 2016 @ 15479m 1d 1h 7m
15 Sep 2016 @ 14405d 1h 28m
10 Sep 2016 @ 13129m 1h 43m
10 Sep 2016 @ 11298m 22s 19m
10 Sep 2016 @ 11109m 17s 18m
10 Sep 2016 @ 1052 ie>717h 8m
09 Sep 2016 @ 1744 ns3d 20m
06 Sep 2016 @ 1724 ns81d 1h 36m
17 Jun 2016 @ 1548 ns4d 22h 37m
12 Jun 2016 @ 1711 ns240d 4h 37m
16 Oct 2015 @ 12346m 40s 16m
16 Oct 2015 @ 12186m 35s 54d 20h 50m
22 Aug 2015 @ 152838d 23h 10m
14 Jul 2015 @ 161818m
14 Jul 2015 @ 16005m
14 Jul 2015 @ 1555 ie3h 0m
14 Jul 2015 @ 125517m
14 Jul 2015 @ 123818m
14 Jul 2015 @ 122013m 18m
14 Jul 2015 @ 120214m 18m
14 Jul 2015 @ 114413m 7m
14 Jul 2015 @ 1137 ie8d 15h 15m

Interval Statistics

Interval Count100
Min5m
Max247d 8h 38m
Mean15d 14h 21m
Median19h 12m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
11317 22 May 2019 @ 0703 --- Kyle nearly full but below over flow. steady boiling and bubbles
11328 21 May 2019 @ 0908 --- Kyle low pool, quiet
11331 20 May 2019 @ 0821 --- Kyle low pool, quiet
10352 16 Sep 2018 @ 1109 16 Sep 2018 @ 1111 Siegmund Gas bubbles and good thumps at 1109. Steam flashes at bottom of pool 1111. Water ~3cm below overflow.
9710 13 Aug 2018 @ 1118 --- Kent Pool six inches below overflow and only minor steam
8848 22 Jun 2018 @ 1645 22 Jun 2018 @ 1735 MAB Two eruptions in this time frame - Starts are different – more convection and upwelling before it starts as it used to, or if that is the start it is very very different, so I don’t have good start times yet until I figure it out! Water level is low, but it does reach overflow during the eruption, about 10 feet out. Superb growling and grumbling from Dog Leg!
8884 21 Jun 2018 @ 0915 --- Polly Bubbling in the back of the pool.
8562 03 Jun 2018 @ 1520 --- Siegmund Pool down ~15cm, runoff channel dry.
8561 03 Jun 2018 @ 1156 --- Siegmund Pool down ~10cm, but runoff channel wet.
2595 31 Oct 2015 @ 2058 --- MAB Corporal and Dog Leg water levels are back to predisturbance levels, after going way way up, then followed by very very low for weeks. I did not get a full cycle to check intervals and durations because Vixen was vexing.
7593 05 Feb 1989 @ 0000 05 Feb 1989 @ 2359 JSJ Corporal Geyser full, clear, overflowing.
7600 11 Feb 1984 @ 1800 --- research-mab 02/11/1984 Corporal Geyser is now serving only as a receptacle for the Dog’s Leg.
5548 10 Jul 1976 @ 1800 --- research-mab 07/10/1976 Corporal Geyser - - feature appears to be more active than normal. The wash from the feature extended beyond normal runoff channel and was evident on the trail between Veteran and the “T” in the trail by bridge at Tantalus.
5700 27 Sep 1975 @ 1800 --- research-mab 09/27/1975 Corporal: the usual overflow activity (periodic with draining level of pool down ~ 6”) which has not been apparent in the last two weeks, was noticed happening today. Timed sequence: 22 min interval between one drain period and another – 15 ½ min after it started to drain, it started to fill, overflow lasted ~ 1 min, draining : ~1 min, filling about 5 min.
5696 01 Sep 1975 @ 1150 --- research-mab 09/01/1975 Corporal filled at 1150- intense boiling. No reaction in either Veteran or Rubble.
5697 01 Sep 1975 @ 1032 --- research-mab 09/01/1975 Corporal was checked during eruption of Rubble. No significant change in Corporal.
5611 05 Aug 1975 @ 1800 --- research-mab 08/05/1975 Corporal behaving strangely. Was bubbling away when pool was quite low, evidence indicated no recent eruption.
5998 12 May 1973 @ 1800 --- research-mab 05/12/1973 Each eruption of Veteran was followed by bubbling and runoff of Corporal. Dog’s Leg water level dropped a ft. as Corporal filled & overflowed – then filled up as overflow of Corporal ceased.
6468 23 Sep 1972 @ 1800 --- research-mab 09/23/1972 For several days I’ve noticed that Corporal Geyser was having greater than usual run-off at times, however every time I went by Corporal it would be 3”-4” below the edge. Today I witnessed the “eruption”. The pool started to fill and bubble until it rose to overflowing. The bubbling action was relatively gentle. Approx 20 gal of water ran down the run-off channel, the bubbling stopped, and the level dropped. A dull thumping was apparent during the bubbling activity. {no specific time}
6422 25 Aug 1972 @ 1800 --- research-mab 08/25/1972 Corporal Geyser – the heat has shifted to here – apparently from “The Dog’s Leg.” There is bubbling in pool of Corporal, the water in it is turbid, & there is now no runoff from The Dog’s Leg. In addition, The Dog’s Leg has lost most of its Sulphur deposit.
7320 24 Aug 1967 @ 1800 --- research-mab 08/24/1967 Corporal erupts frequently – perhaps 2 or 3 times an hour.
6648 29 Jun 1964 @ 0735 --- research-mab 06/29/1964 Corporal – Placed marker at 7:35a Trail was very wet.
EntrySourceLinkComment
21 May 2015 @ 1130 JSJ https://www.youtube.com/watch?v=ZTbLqppomoI Video compilation of Corporal Geyser's eruptions in the latest morning & earliest afternoon of 21 May 2015.
Baseline does not exist.


All data is shown in US/Mountain timezone unless specified otherwise.

GeyserTimes.org is not affiliated with the National Park Service, but it is "for the benefit and enjoyment of the people".

If you have any questions or comments please contact: webmaster@geysertimes.org

Support open geyser data: Patreon Page

© Copyright 2011-2019

Facebook Page Telegram Channel Get it on Google Play Download on the App Store

Google Play and the Google Play logo are trademarks of Google LLC.

Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc., registered in the U.S. and other countries.