Last Known Eruption
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Latest Eruptions

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Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
17064 12 May 2021 @ 1815 --- steve Strong overflow
17037 09 May 2021 @ 1542 --- steve Water in the overflow channels.
16885 18 Apr 2021 @ 0739 --- ypcaribou Runoff channels full
16884 18 Apr 2021 @ 0604 --- ypcaribou Runoff channels full
15730 26 Aug 2020 @ 1024 --- ypcaribou full runoff
15398 05 Aug 2020 @ 1056 --- JSJ In overflow.
15374 04 Aug 2020 @ 1605 --- JSJ In overflow. Same at 2014.
15145 01 Aug 2020 @ 1853 --- JSJ In overflow.
15085 22 Jul 2020 @ 1925 --- ypcaribou Runoff full
12934 01 Aug 2019 @ 0918 --- JSJ In overflow.
12468 13 Jul 2019 @ 0840 --- ypcaribou Full runoff
11799 14 Jun 2019 @ 1317 --- JSJ In overflow.
11772 13 Jun 2019 @ 1202 13 Jun 2019 @ 1926 JSJ In overflow.
11736 11 Jun 2019 @ 1038 --- JSJ In overflow.
11715 10 Jun 2019 @ 1338 --- JSJ In overflow.
11676 09 Jun 2019 @ 0658 09 Jun 2019 @ 1409 JSJ In overflow.
11660 08 Jun 2019 @ 1159 08 Jun 2019 @ 1603 JSJ Indigo Spring not in overflow.
11645 08 Jun 2019 @ 1128 --- User34 No overflow
11638 07 Jun 2019 @ 1758 --- JSJ In overflow.
11556 03 Jun 2019 @ 0829 --- JSJ In overflow. Same at 2113.
11284 10 May 2019 @ 1841 --- Siegmund in strong overflow
10766 13 Dec 2018 @ 1630 --- ypcaribou Normal water flow in runoff channels.
10765 13 Dec 2018 @ 0930 --- ypcaribou Normal water flow in runoff channels.
10763 12 Dec 2018 @ 1530 --- ypcaribou Absolutely no water in runoff channels.
10712 03 Nov 2018 @ 1617 --- ypcaribou Run off channels at full volume, orange and green bacteria
10356 16 Sep 2018 @ 1255 20 Sep 2018 @ 1207 Siegmund Normal heavy overflow every time I observed it: 16th 1259, 1846, 1925; 17th 1621;18th 1212; 19th 1131, 1259; 20th 1207; and several other drivebys I forgot to record times.
9461 04 Aug 2018 @ 1407 --- JSJ In overflow.
8805 19 Jun 2018 @ 2000 --- ypcaribou Runoff channels empty except for small trickle in left most channel.
8747 17 Jun 2018 @ 1004 --- ypcaribou Small trickle of water from left most channel. Otherwise channels empty.
8746 17 Jun 2018 @ 0550 --- ypcaribou Small trickle of water in left most channel. Otherwise channels empty.
8570 04 Jun 2018 @ 1631 --- Siegmund Overflowing normally (same every other time I drove by on the 4th)
8442 04 Jun 2018 @ 1439 --- JSJ Indigo Spring in overflow at 1439.
8553 02 Jun 2018 @ 0752 02 Jun 2018 @ 1906 Siegmund Strong overflow at 0752, 1202, 1336, and 1906.
8418 02 Jun 2018 @ 1005 --- JSJ In overflow.
8552 01 Jun 2018 @ 1907 01 Jun 2018 @ 2200 Siegmund Runoff channel still dry.
8398 01 Jun 2018 @ 1840 --- JSJ Not in overflow. Ditto when I drove by a couple hours later.
10968 01 Jun 2018 @ 1420 --- WillBoekel Runoff channel empty.
4129 14 May 2017 @ 0626 --- ypcaribou Standing at Excelsior's rim, noticed tall column of steam in vicinity of Indigo Spring that all but disappeared a few minutes later. No visible water splashing but was a cool morning so steam shrouded the view.
3103 18 Jun 2016 @ 1507 --- Siegmund Normal strong overflow
2738 16 Apr 2016 @ 1347 --- Siegmund Normal runoff today, at 1347 and at ~1850.
2732 15 Apr 2016 @ 1118 15 Apr 2016 @ 1934 Siegmund At 1118, was surprised to see NO water in Indigo's runoff channel. At 1615, the channel was bone dry though the algae still orange. At 1804, just the tiniest trickle of overflow. At 1934, full flow as in previous years.
714 10 Jan 2011 @ 0000 10 Jan 2011 @ 1200 BoekelUpload Firehole overflow channel empty in am vr
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