Last Known Eruption
1h 31m ago

Latest Eruptions

EruptionDurationInterval
26 May 2017 @ 0721 ie wc1h 15m
26 May 2017 @ 0606 wc1h 6m
26 May 2017 @ 0500 wc58m
26 May 2017 @ 0402 wc1h 5m
26 May 2017 @ 0257 wc1h 18m
26 May 2017 @ 0139 wc ini13h 13m
25 May 2017 @ 12261h 12m
25 May 2017 @ 11141h 13m
25 May 2017 @ 1001 wc29m
25 May 2017 @ 0932 wc min59m
25 May 2017 @ 0833 wc58m
25 May 2017 @ 07351h 5m
25 May 2017 @ 0630 wc1h 5m
25 May 2017 @ 0525 wc59m
25 May 2017 @ 0426 wc1h 15m
25 May 2017 @ 0311 wc55m
25 May 2017 @ 0216 wc1h 15m
25 May 2017 @ 0101 wc ini18h 21m
24 May 2017 @ 0640 wc1h 12m
24 May 2017 @ 0528 wc1h 4m
24 May 2017 @ 0424 wc1h 20m
24 May 2017 @ 0304 wc ini14h 13m
23 May 2017 @ 1251 wc min~20s 1h 12m
23 May 2017 @ 1139 wc maj1h 13m
23 May 2017 @ 1026 wc min22m
23 May 2017 @ 1004 min58m
23 May 2017 @ 0906 wc1h 1m
23 May 2017 @ 08051h 6m
23 May 2017 @ 0659 ie wc1h 8m
23 May 2017 @ 055152m
23 May 2017 @ 0459 wc35m
23 May 2017 @ 0424 wc min13h 23m
22 May 2017 @ 1501 wc1h 20m
22 May 2017 @ 1341 wc1h 13m
22 May 2017 @ 1228 wc ini8h 39m
22 May 2017 @ 0349 wc1h 5m
22 May 2017 @ 0244 wc1h 18m
22 May 2017 @ 0126 wc ini13h 35m
21 May 2017 @ 1151 wc1h 2m
21 May 2017 @ 1049 wc1h 2m
21 May 2017 @ 09471h 7m
21 May 2017 @ 08401h 14m
21 May 2017 @ 07261h 19m
21 May 2017 @ 0607 wc ini13h 1m
20 May 2017 @ 17061h 1m
20 May 2017 @ 1605 wc1h 4m
20 May 2017 @ 1501 maj3m 40s 1h 5m
20 May 2017 @ 1356 maj3m 45s 1h 5m
20 May 2017 @ 1251 wc57m
20 May 2017 @ 1154 wc57m
20 May 2017 @ 1057 wc1h 16m
20 May 2017 @ 0941 ini18h 43m
19 May 2017 @ 1458 wc1h 12m
19 May 2017 @ 1346 wc ini11h 21m
19 May 2017 @ 0225 wc54m
19 May 2017 @ 0131 wc1h 3m
19 May 2017 @ 0028 wc1h 11m
18 May 2017 @ 2317 wc1h 7m
18 May 2017 @ 2210 wc1h 8m
18 May 2017 @ 2102 wc1h 6m
18 May 2017 @ 1956 wc1h 8m
18 May 2017 @ 1848 wc1h 2m
18 May 2017 @ 1746 wc maj1d 10h 22m
17 May 2017 @ 0724 wc1h 10m
17 May 2017 @ 0614 wc1h 5m
17 May 2017 @ 0509 wc1h 6m
17 May 2017 @ 0403 wc39m
17 May 2017 @ 0324 ? wc min1h 13m
17 May 2017 @ 0211 ns wc1h 11m
17 May 2017 @ 0100 wc1h 28m
16 May 2017 @ 2332 wc ini11h 34m
16 May 2017 @ 1158 wc1h 19m
16 May 2017 @ 1039 ie wc7h 51m
16 May 2017 @ 0248 wc1h 7m
16 May 2017 @ 0141 wc1h 7m
16 May 2017 @ 0034 ie wc1h 21m
15 May 2017 @ 2313 wc ini8h 4m
15 May 2017 @ 1509 wc1h 4m
15 May 2017 @ 1405 wc1h 28m
15 May 2017 @ 1237 wc ini15h 44m
14 May 2017 @ 2053 wc1h 8m
14 May 2017 @ 1945 wc1h 16m
14 May 2017 @ 1829 wc ini11h 45m
14 May 2017 @ 0644 wc1h 18m
14 May 2017 @ 0526 wc~4m 1h 30m
14 May 2017 @ 0356 wc ini9h 28m
13 May 2017 @ 1828 wc~4m 1h 10m
13 May 2017 @ 1718 wc~4m 5m
13 May 2017 @ 1713 wc min1h 17m
13 May 2017 @ 1556 wc1h 14m
13 May 2017 @ 1442 wc1h 17m
13 May 2017 @ 1325 ie wc ini8h 40m
13 May 2017 @ 0445 wc1h 18m
13 May 2017 @ 0327 wc ini8h 58m
12 May 2017 @ 1829 ie wc1h 23m
12 May 2017 @ 1706 wc ini10h 45m
12 May 2017 @ 0621 wc59m
12 May 2017 @ 0522 wc1h 17m
12 May 2017 @ 0405 wc1h 20m
12 May 2017 @ 0245 wc ini7h 19m

Interval Statistics

Interval Count100
Min5m
Max1d 10h 22m
Mean3h 28m
Median1h 12m
Initial-to-Initial
Interval Count16
Min9h 58m
Max2d 14h 14m
Mean20h 55m
Median18h 43m

Latest Notes

Note IDStart TimeEnd TimeEntrantNote
4121 23 May 2017 @ 0314 --- DGInc POSSIBLE eruption. Too dark for me to be certain, even for a questionable entry.
4122 23 May 2017 @ 0143 --- DGInc POSSIBLE initial of series. Too dark for me to be certain, even for a questionable entry.
3964 01 Apr 2017 @ 1310 --- Betty chat visitor report it is ie. Maybe the initial
3956 20 Feb 2017 @ 0351 20 Feb 2017 @ 0515 DGInc A set of minors ended the series. The larger minors have occured at the following times: 0351, 0404, 0417, 0435 and 0449. Each of these had a duration of ~30 seconds to ~1 minute.
3909 14 Jan 2017 @ 0954 --- DaveM Either Lion or Beehive at 0820
3907 09 Jan 2017 @ 0058 --- Betty Maybe erupting, but it could be Beehive as well. Lasted about 6 min, so it was possibly initial
3874 16 Nov 2016 @ 1824 16 Nov 2016 @ 1849 DGInc Might've erupted or tried to erupt. I cannot tell if it actually DID erupt, since it was quite foggy at 1824 and wasn't able to see any further than Old Faithful at 1849. Series continued till at least 2156.
3781 13 Oct 2016 @ 1409 13 Oct 2016 @ 1429 udo Roars 1409, 1414, 1416, 1417, 1419, 1423,
3741 03 Oct 2016 @ 0252 --- Betty Possible eruption behind OF steam
3681 17 Sep 2016 @ 1639 --- Graham Big splash out of Lion but not enough to call a minor. Looks like a series of 1 unless it can come back from that splash and erupt.
3600 04 Sep 2016 @ 0940 --- BobInSLC Almost erupted, strongest try without going I've seen. lasted 2 minutes.
3564 28 Aug 2016 @ 1431 --- Betty One tall burst, lasted ~20 sec
3506 18 Aug 2016 @ 1505 18 Aug 2016 @ 1513 Casey Two powerful seconds-long surges at 1505 and 1513 observed on webcam. There was debate as to whether they qualified as minor eruptions or not.
3125 23 Jun 2016 @ 1113 --- udo Roar 1113. Roarlet 1114 & 1123 & 1126 & 1128
3058 12 Jun 2016 @ 0043 --- DGInc MAY have erupted. It was suddenly in the background very steamy while OF erupted and I'm pretty sure it wasn't the steam of OF.
2960 03 Jun 2016 @ 1516 03 Jun 2016 @ 1628 JSJ Noticed Lion spits at 1516, 1525, 1530, 1542, 1543, 1605, and 1628.
2877 22 May 2016 @ 0321 --- DaveM Lion erupted. I hope there is a reliable observer around somewhere.
2874 22 May 2016 @ 0150 --- DaveM Lion erupted. But since "eyes in the basin are most often more reliable than eyes through the webcam" I hope someone in the basin saw the eruption.
2872 22 May 2016 @ 0032 --- DaveM Lion had an initial eruption. But since "eyes in the basin are most often more reliable than eyes through the webcam" I hope someone in the basin saw the eruption.
2764 20 Apr 2016 @ 1213 --- udo 1st roar 1213, 2nd 1217, 3rd 1219, 4th 1222, burp 1228, weak 1233. DNE
2744 16 Apr 2016 @ 1840 --- User34 New "drinking fountain" vent a couple feet to the right and in front of the old one
2722 09 Apr 2016 @ 1058 09 Apr 2016 @ 1059 JSJ Low, brief spouting at 1058 and 1059.
2718 26 Mar 2016 @ 2017 --- Graham Still no Lion since this morning.
2709 12 Mar 2016 @ 1307 12 Mar 2016 @ 1322 JSJ Several seconds of moderately low spouting at 1307 (webcam observation). Also a couple seconds of low spouting at near-latest 1319. Spitting at late 1321 and early 1322.
2669 06 Feb 2016 @ 1259 06 Feb 2016 @ 1300 JSJ Brief, moderately low spouting from 1259 to early 1300.
2653 17 Jan 2016 @ 1529 17 Jan 2016 @ 1541 JSJ Eruption # 2 in Lion Geyser's series very likely occurred while webcam was focused on Grand Geyser's 1529 to 1541 eruption.
2649 17 Jan 2016 @ 0745 --- Graham Doing terminal roars, no more eruptions in series.
2644 15 Jan 2016 @ 1700 15 Jan 2016 @ 1715 JSJ Brief eruptive spouting from late 1700 to early 1701 & at 1714.
2424 26 Sep 2015 @ 1327 --- JSJ ~1 to 2 seconds of moderately low spouting at 1327 (webcam observation).
2286 07 Sep 2015 @ 1146 --- BobInSLC Lion minors at 11:46 and 11:48
2146 15 Aug 2015 @ 1123 15 Aug 2015 @ 1124 JSJ Occasional spitting at 1123 to 1124.
2066 09 Aug 2015 @ 0600 --- Jake splashing above cone. working towards initial
2039 07 Aug 2015 @ 0550 --- RyanMaurer huffing and puffing but no eruption. must have ended a series.
1847 06 Jul 2015 @ 2004 --- BobInSLC big sustained splash, almost erupted
731 12 Jan 2013 @ 0755 --- Graham Probably a Lion eruption at 0755ie based on stean clouds but not sure. Matches up with the 0905 time reported later.
715 14 Nov 2012 @ 1214 --- Pat Snyder 1214 Lion is an initial.
688 30 Oct 2012 @ 1417 --- BB I believe the 1417 Lion was a minor. Just visible in one frame.
505 22 Sep 2012 @ 2150 22 Sep 2012 @ 2215 Jake series end. Failed roars 2150 - 2215. I left. N Goggles continued regular fill/drop cycle.
393 30 Aug 2012 @ 1314 30 Aug 2012 @ 1317 vw Lion had a fairly short eruption at 1314 ns, followed by a minor at 1317. Appeared to be two distinct eruptions on the stream.\r\n
309 19 Jun 2012 @ 0000 19 Jun 2012 @ 2359 AndrewW Lion is and sjould be marked as an initial.
282 08 Jun 2012 @ 2124 --- BB It looked like Lion started another series right before dark. Not 100% sure but it looked like it started around 2124, heavy steam in about three or four captures before it got too dark to see anything
232 15 May 2012 @ 1711 --- WillBoekel Roar 17:11
233 15 May 2012 @ 1711 --- WillBoekel Roar 17:11wc
223 09 May 2012 @ 1641 --- WillBoekel 1641WC roar
222 09 May 2012 @ 1636 --- WillBoekel 1636 Roar
194 29 Apr 2012 @ 1120 --- WillBoekel roar 1120
151 02 Apr 2012 @ 0705 02 Apr 2012 @ 0715 AndrewW Some said they saw lion between 705 and 715. Well see
146 26 Mar 2012 @ 0000 26 Mar 2012 @ 2359 Graham Could not see Lion for a couple of hours so it probably erupted more.
107 16 Feb 2012 @ 0000 16 Feb 2012 @ 2359 AndrewW I\\\'d like to mention lion\\\'s interval because this one is exceptionally long even for series. Either its erupting at night or just a long interval. I guess we\\\'ll wait a long time before we use the d word though.
76 05 Jan 2012 @ 0228 --- BB There was something erupting at 0228. I was thinking Lion, in the chatroom there was a feeling it might have been BH, based on the interval from the last Lion eruption on 01/04.\r\n\r\nI finally compared captures, and I still feel it was rather Lion than BH. The location was too far right for BH.\r\n\r\nUnfortunately it was too dark later, so I don\'t know if there was another eruption later on.
728 26 Nov 2011 @ 1224 --- WillBoekel Electronic logger failed at 12:24
59 14 Oct 2011 @ 0217 14 Oct 2011 @ 0309 BB I have three nighttime eruptions in my captures that are hard to tell apart. After comparing them to daytime captures I think that BH probably erupted at 0217 and Lion at 0134 and 0309. These are all ie times as I only capture one frame every 30 seconds.
28 14 Sep 2011 @ 0320 --- BB One capture with heavy steam from Lion at 3:20... maybe a minor?
974 23 Jun 2008 @ 1100 23 Jun 2008 @ 1159 BoekelUpload 11:xx
962 24 May 2008 @ 1540 24 May 2008 @ 1549 BoekelUpload 15:4x
957 02 May 2008 @ 1010 02 May 2008 @ 1019 BoekelUpload 10:1x
1354 13 Jun 2007 @ 1240 13 Jun 2007 @ 1249 BoekelUpload 12:4x
534 03 May 1977 @ 0857 --- BoekelUpload 0857 puffed
484 28 Oct 1975 @ 0000 28 Oct 1975 @ 1200 BoekelUpload active am
EntrySourceLinkComment
16 Aug 2015 @ 1110 JSJ https://www.flickr.com/photos/jsjgeology/21658915002 Photo (1 of 6) of Lion Geyser's 11:10 to 11:14 AM eruption on 16 August 2015.
16 Aug 2015 @ 0944 JSJ https://www.flickr.com/photos/jsjgeology/21679511491 Photo (1 of 2) of Lion Geyser's 9:44 AM-onward eruption on 16 August 2015.
15 Aug 2015 @ 1245 JSJ https://www.flickr.com/photos/jsjgeology/21316237110 Photo of Lion Geyser's 12:45 PM-onward eruption on 15 August 2015.
10 Aug 2015 @ 1736 JSJ https://www.flickr.com/photos/jsjgeology/21316396318 Photo of Lion Geyser's 5:36 to 5:41 PM eruption on 10 August 2015.
09 Aug 2015 @ 1422 JSJ https://www.flickr.com/photos/jsjgeology/21477913196 Photo (1 of 5) of Lion Geyser's 2:22 to 2:26 PM eruption on 9 August 2015.
09 Aug 2015 @ 1318 JSJ https://www.flickr.com/photos/jsjgeology/21316186678 Photo (1 of 3) of Lion Geyser's 1:18 to 1:22 PM eruption on 9 August 2015.
09 Aug 2015 @ 1300 JSJ https://www.flickr.com/photos/jsjgeology/20881167754 Photo (1 of 13) of Lion Geyser's 1:00 to 1:01 PM eruption on 9 August 2015.
09 Aug 2015 @ 1142 JSJ https://www.flickr.com/photos/jsjgeology/21512230241 Photo (1 of 8) of Lion Geyser's 11:42 to 11:46 AM eruption on 9 August 2015.
09 Aug 2015 @ 1035 JSJ https://www.flickr.com/photos/jsjgeology/21315549938 Photo (1 of 4) of Lion Geyser's 10:35 to 10:38 AM eruption on 9 August 2015.
03 Jun 2014 @ 1223 JSJ https://www.flickr.com/photos/jsjgeology/15097998831 Photo of Lion Geyser's 12:24 to 12:27 PM eruption on 3 June 2014.
01 Jul 2016 @ 1053 Biddle https://imgur.com/gallery/BzVsLOK/new Beginning of erpution
10 Apr 2016 @ 1450 JSJ https://www.youtube.com/watch?v=VttoHRno1mk Video (via webcam) of Lion Geyser's initial eruption from 2:50 to 2:56 PM on 10 April 2016.
01 Apr 2016 @ 1120 JSJ https://www.flickr.com/photos/jsjgeology/25900442600 Webcam screen capture photo (1 of 3) of Lion Geyser's 11:20 to 11:24 AM eruption on 1 April 2016.
31 Jan 2016 @ 1211 JSJ https://www.flickr.com/photos/jsjgeology/24108596953 Webcam screen capture photo (1 of 3) of the Lion Geyser-Old Faithful Geyser dual eruption from 12:11 to 12:15 PM on 31 January 2016.
24 Dec 2015 @ 1311 JSJ https://www.flickr.com/photos/jsjgeology/23924093756 Webcam screen capture photos (1 or 3) of Lion Geyser's 1:11 to 1:15 PM eruption on 24 December 2015.
08 Nov 2015 @ 1339 JSJ https://www.flickr.com/photos/jsjgeology/22462290807/in/photostream/ Webcam screen capture photo of Lion Geyser's 1:39 to 1:43 PM eruption on 8 November 2015.
09 May 2015 @ 1141 DaveM https://www.youtube.com/watch?v=zHeEI0QqiJA Capture showing the Lion did nto erupt at 1141. Note capture continues until Castle which started at 1210.
12 Mar 2014 @ 0343 lt http://imgur.com/1QfYneu screencap of static image
18 Dec 2013 @ 1154 Richlg96 http://youtu.be/wKIUPHHEGW0 Lion 1154 2013/12/18
07 Sep 2013 @ 1415 Richlg96 http://youtu.be/IzwV2p0HZh8
BaselineDistance (ft)Description
South side 100North edge of the walk near Heart Spring
North side 100North edge of the walk near North Goggles Geyser


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