Last Known Eruption
7y 287d 10h 5m ago

Latest Eruptions

Eruption DurationInterval
06 Jun 2016 @ 1123 ie1y 127d 2h 46m
31 Jan 2015 @ 0737 ns166d 20h 37m
17 Aug 2014 @ 1200 ? A1d 22h 16m
15 Aug 2014 @ 134413d 21h 11m
01 Aug 2014 @ 16338m 4d 4h 41m
28 Jul 2014 @ 1152 ns22h 14m
27 Jul 2014 @ 13382d 6h 13m
25 Jul 2014 @ 07257 or 8 minutes22h 20m
24 Jul 2014 @ 090513h 50m
23 Jul 2014 @ 1915 A5h 54m
23 Jul 2014 @ 13219.5m 1d 2h 21m
22 Jul 2014 @ 1100 A1d 23h 57m
20 Jul 2014 @ 1103 ie19h 52m
19 Jul 2014 @ 15115m 18h 49m
18 Jul 2014 @ 20227m 9h 22m
18 Jul 2014 @ 11006m 3d 1h 15m
15 Jul 2014 @ 0945 ?17h 30m
14 Jul 2014 @ 16157m 1d 3h 38m
13 Jul 2014 @ 1237 ie1d 23h 17m
11 Jul 2014 @ 13207m 17d 20h 20m
23 Jun 2014 @ 17006m 11d 2h 47m
12 Jun 2014 @ 14139m 3y 328d 2h 57m
20 Jul 2010 @ 11165.5m 8h 38m
20 Jul 2010 @ 0238 E12h 36m
19 Jul 2010 @ 1402 E8h 34m
19 Jul 2010 @ 0528 E17h 28m
18 Jul 2010 @ 1200 E14h 21m
17 Jul 2010 @ 2139 E1d 4h 44m
16 Jul 2010 @ 1655~5m 6h 20m
16 Jul 2010 @ 10355-10 minutes20h 47m
15 Jul 2010 @ 134821h 3m
14 Jul 2010 @ 1645~15m 1d 3h 19m
13 Jul 2010 @ 1326 ie2y 362d 20h 20m
16 Jul 2007 @ 1706 A67y 25d 18h 28m
06 Jul 1940 @ 21385m 16d 3h 8m
20 Jun 1940 @ 18307h 0m
20 Jun 1940 @ 113020h 30m
19 Jun 1940 @ 15005d 19h 0m
13 Jun 1940 @ 20006h 0m
13 Jun 1940 @ 14006h 0m
13 Jun 1940 @ 0800346d 20h 55m
02 Jul 1939 @ 1105~10m 330d 19h 5m
05 Aug 1938 @ 160010m 6h 0m
05 Aug 1938 @ 100010m 45d 25m
21 Jun 1938 @ 09356.5m 2y 341d 16h 50m
15 Jul 1935 @ 16451d 1h 45m
14 Jul 1935 @ 1500331d 20h 25m
16 Aug 1934 @ 183510m 1y 43d 2h 5m
04 Jul 1933 @ 1630~10m 6h 35m
04 Jul 1933 @ 0955~10m 28y 40d 19h 19m
31 May 1905 @ 14362d 2h 56m
29 May 1905 @ 11401d 22h 20m
27 May 1905 @ 13201d 1h 5m
26 May 1905 @ 12152d 22h 30m
23 May 1905 @ 13451d 35m
22 May 1905 @ 13101d 55m
21 May 1905 @ 12152d 30m
19 May 1905 @ 114522h 30m
18 May 1905 @ 13152d 5m
16 May 1905 @ 13101d 1h 0m
15 May 1905 @ 12102d 30m
13 May 1905 @ 114023h 25m
12 May 1905 @ 12151d 23h 5m
10 May 1905 @ 13101d 12h 25m
09 May 1905 @ 00451d 11h 30m
07 May 1905 @ 13153d 1h 25m
04 May 1905 @ 115023h 10m
03 May 1905 @ 12402d 1h 0m
01 May 1905 @ 11401d 17h 25m
29 Apr 1905 @ 181510m 2d 10h 57m
27 Apr 1905 @ 07188m 23h 13m
26 Apr 1905 @ 08058m 1d 12h 56m
24 Apr 1905 @ 19098m 12h 1m
24 Apr 1905 @ 07088m 1d 6m
23 Apr 1905 @ 07028m 11h 53m
22 Apr 1905 @ 190910m 2d 5h 7m
20 Apr 1905 @ 14028m 2d 24m
18 Apr 1905 @ 13388m 2d 22h 18m
15 Apr 1905 @ 15208m 4h 30m
15 Apr 1905 @ 10508m 1d 22h 15m
13 Apr 1905 @ 12358m 1d 3h 4m
12 Apr 1905 @ 09318m 14h 41m
11 Apr 1905 @ 185010m 286d 3h 10m
29 Jun 1904 @ 15409m 2d 1h 15m
27 Jun 1904 @ 142522h 30m
26 Jun 1904 @ 155512m

Interval Statistics

Interval Count85
Min4h 30m
Max67y 25d 18h 28m
Mean1y 116d 46m
Median1d 11h 30m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
26935 08 Jul 2023 @ 1631 08 Jul 2023 @ 1636 nails Hot and steamy. Boiling to about 6 inches on side nearest boardwalk.
26533 20 Jun 2023 @ 1922 --- Craigmon99 2 foot splashing
23544 03 Sep 2022 @ 1214 --- Janet Jones Ranger Don told me King was seen in eruption from the marina on 30 Aug 2022.
23130 10 Aug 2022 @ 1205 --- Janet Jones Nice boils seen. Larger area boiling up a foot or two.
22876 27 Jul 2022 @ 0938 --- mwolf periodic large boils, lots of steam
22107 25 Jun 2022 @ 0627 --- K.Cooper Rolling and noisy boiling.
21314 15 May 2022 @ 1700 --- steve King Geyser had occasional good boils and big steam clouds but I did not see an eruption.
18952 17 Aug 2021 @ 0953 --- elshell pool is full, overflowing and boiling
5380 25 Aug 2017 @ 1952 --- Tara Strong boiling episode (?) put out a lot of thick steam, no apparent eruptive activity based on bacteria in channel.
4540 25 Jul 2017 @ 1901 25 Jul 2017 @ 2002 JSJ Intermittent roiling (e.g., at 1901, 1903, 1906, 1907, etc.).
2838 13 May 2016 @ 1040 --- Tara Superheated boiling.
2262 04 Sep 2015 @ 1510 04 Sep 2015 @ 1530 Siegmund Intermittent dense clouds of steam visible from Lakeshore. When within sight of King I never saw a boil more than about 6 inches high.
1458 19 Oct 2014 @ 1306 19 Oct 2014 @ 1325 Janet Jones Saw King give a couple of sustained boils this afternoon between 1306 and 1325, but never saw it erupt.
1119 30 Jul 2014 @ 0700 30 Jul 2014 @ 2000 WillBoekel no eruption between 0700 and 2000. it was full when Rocco arrived at 0700.
1118 29 Jul 2014 @ 0930 29 Jul 2014 @ 1600 Tara No eruption between 0930 and 1600.
1515 12 Aug 2009 @ 1109 --- Janet Jones In going through older photos of King Geyser, I noticed one from this date shows the crater with a lower water level as though it was refilling after an eruption.
783 09 Aug 2009 @ 0000 09 Aug 2009 @ 2359 Tara Ralph Taylor saw King Geyser in eruption on August 9. It is not known if there were more eruptions; King had ceased activity by the time an electronic monitor was placed on it later in August.
895 06 Aug 1939 @ 0000 06 Aug 1939 @ 2359 Tara Two eruptions of King observed on August 6, 1939, no other details available.  Rangers Monthly Report, August, 1939, Box W-85, YNP Archives.
857 12 Jul 1935 @ 0000 12 Jul 1935 @ 2359 Tara Two eruptions reported 6 hours apart. West Thumb Ranger Station logbook, July 12, 1935, [p. 13], Box W-37, YNP Archives.
856 09 Jul 1935 @ 0000 09 Jul 1935 @ 2359 Tara Two eruptions reported 6 hours apart. Height 6-8 feet, duration about 5 minutes. West Thumb Ranger Station logbook, July 9, 1935, [p. 12], Box W-37, YNP Archives.
785 24 Jul 1904 @ 0000 24 Jul 1904 @ 2359 Tara Clark noted that King had not erupted for 8 days. This was the last report for 1904. Archive document 7330, F. Clark to Major Jno Pitcher, Superintendent Yellowstone National Park, July 24, 1904, Letter Box 14, YNP Archives.
784 28 Jun 1904 @ 0000 28 Jun 1904 @ 2359 Tara King was not seen on June 28. Archive document 7332, Corporal Frank Clark to Major Jno Pitcher, Supt Yellowstone National Park, June 30, 1904, Letter Box 14, YNP Archives.
786 30 Apr 1904 @ 0000 30 Apr 1904 @ 2030 Tara King had not erupted as of 2030. Reported by the name \"Lake Geyser.\" Archive Documents 7314 and 7315, Frank Clark to Major Jno Pitcher, Superintendent Yellowstone National Park, April 30, 1905, Letter Box 14, YNP Archives.
EntrySourceLinkComment
16 Jul 2007 @ 1706 Janet Jones http://www.geyserwatch.com/wp-content/uploads/2015/11/king70716J7528.jpg King Geyser steaming and empty 16 July 2007
20 Jul 2014 @ 1103 Janet Jones http://www.geyserwatch.com/wp-content/uploads/2014/07/140720J1140351.jpg Photo taken from the 2nd pullout past Potts Hot Springs along the lake.
20 Jul 2010 @ 1116 Tara http://www.youtube.com/watch?v=TiC6fyauMys Tara Cross video of King Geyser eruption, July 20, 2010 at 1116.
Baseline does not exist.