| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 24567 |
30 Oct 2022 @ 1415 |
--- |
ypcaribou |
Note for this 2022 summer season: Remains a perpetual spouter to couple feet. |
| 18322 |
09 Jul 2021 @ 1850 |
--- |
MAB |
Some really nice bursts or maybe a combination of wind and backlighting - -
Branch Sp strong center boil and in overflow |
| 29130 |
03 Aug 2019 @ 1200 |
--- |
research-mab |
8/3/2019 Minute – no time noted - vigorous almost violent |
| 29589 |
31 Jul 2016 @ 1015 |
31 Jul 2016 @ 1100 |
research-mab |
7/31/2016 Minute Geyser was experiencing larger eruptions than usual (up to 7-8 ft) about 10:15 this morning. When it was observed again after 11:00, it was drained completely. |
| 29577 |
09 Jun 2016 @ 1200 |
--- |
research-mab |
6/9/2016 - no time noted - Minute Geyser drained (never seen this before) |
| 29403 |
06 Sep 2011 @ 1200 |
--- |
research-mab |
9/6/2011 - no time noted - A new vent has opened up @ Minute Geyser. It might be the old vent cracks opened to the left of the current vent than a crater collapsed |
| 29399 |
20 Aug 2011 @ 1000 |
20 Aug 2011 @ 1530 |
research-mab |
8/20/2011 (~1000), Minute Geyser and the hot spring just to its east have changed in behavior in appearance at 1530 Minute’s secondary vent – just east of the perpetually spouting vent – is bubbling, where at 1000 it was calm. The hot spring – its usual milky green w/gentle bubbling at 1000 – is now muddy with the film on top (orange) bubbling more vigorously, and significantly higher water level. |
| 4746 |
14 Jul 2002 @ 1329 |
--- |
research-mab |
07/14/2002 Minute Geyser 1329 – was not visibly erupting over 5 mins. I heard the rumbling, then saw intermittent splashes – seemed lower, also. |
| 29832 |
23 Jun 2002 @ 1330 |
--- |
research-mab |
6/23 Keep an eye on Minute geyser – during my 1:30 walk, it was not spouting. Some interesting changes happening? Steam explosion? True geyser? Fun Fun Fun |
| 4745 |
05 Jun 2002 @ 1400 |
--- |
research-mab |
Minute Geyser- during the 1:30 walk, Minute was NOT perpetually spouting. 15 minutes prior, Cory W.. passed it and it was spouting. Approx 2:00-2:15. DH |
| 29881 |
24 Jun 2000 @ 1120 |
--- |
research-mab |
6/24/2000 Dr Nordstrom, USGS doing research at Minute and pool next to it - monitored pH & temperature. --
Minute – Boiling 7.19 pH
Branch – 80° 3.19 pH
He says it may be because the cooler more acidic is drawing water from closer to the surface and hotter more neutral from lower down.
Note: 1120 am Minute Geyser was not spouting when my group arrived, but it started up again. Dr Nordstrom says it was still spouting when he left at about 1030 |
| 29911 |
16 Sep 1999 @ 1115 |
--- |
research-mab |
9/16/1999 No water spurting from Minute Geyser ~1115. |
| 29950 |
07 Jul 1998 @ 0818 |
--- |
research-mab |
7/7/1998 Minute Geyser – Full pool and eruption to 3’ 0818 |
| 4718 |
05 Jul 1998 @ 1114 |
--- |
research-mab |
7/5/98 Back Basin- Minute dry at 1114, Pool becoming more and more orange colored. |
| 29945 |
11 Jun 1998 @ 1810 |
--- |
research-mab |
6-11-98 Minute: completely dry around vent, can hear water bubbling below at 1810. Pool to left down 12”-16”…. Nicole saw it dry around 2p?? and in eruption after the 343p Echinus eruption |
| 4719 |
04 Jun 1998 @ 1715 |
05 Jun 1998 @ 1600 |
research-mab |
6/5 At 5:13p yesterday (6/4) I approached Minute. There was no water coming out the vent although you could hear water bubbling and see an occasional wisp of steam. The thick white sinter was very apparent around the vent and the grey geyserite spine rocks were dry. The “new pool” was less full and there was no overflow. It appeared that Minute had acted like a geyser instead of a perpetual spouter. After seeing Echinus at 615pm for 4min I returned to check on Minute. From a distance I could see a huge column of steam appearing to be an eruption. At 1830 Minute was erupting to about 4’ with the “new pool” overflowing. This continued until ?? since I left at 1849. This a.m. (6/5) at 820 am Minute was behavior like a weak spouter with the water barely breaking the surface and rising slowly to 2”-4”. Stand by The “Minute”
Minute cont… At about 2p Minute was dry when Dave walked by. Around 4p erupting as a geyser. The pool was very full & overflowing. |
| 29933 |
20 Apr 1998 @ 1200 |
--- |
research-mab |
4/20/1998 - no time noted - Minute is much less active. |
| 30011 |
25 Sep 1997 @ 1200 |
--- |
research-mab |
9/25/1997 - no time noted - I noticed some changes...Minute Geyser is in overflow w/large pool |
| 30037 |
21 Sep 1996 @ 1800 |
--- |
research-mab |
9/21/1996 - no time - Minute Geyser is again back to normal |
| 5435 |
14 Sep 1996 @ 1800 |
--- |
research-mab |
9/14/96 Minute Geyser has recovered and is back to what normal is for it these last years. |
| 5434 |
11 Sep 1996 @ 1800 |
--- |
research-mab |
9/11/96 Steam vent pressure at Minute Geyser has reduced. It is not spouting out much water vapor as before but does remain a steamvent. Resting for 5 sec. Then increases pressure for 15 sec. SB |
| 5433 |
10 Sep 1996 @ 1800 |
--- |
research-mab |
9/101996 Minute Geyser is now a steamvent erupting steam and fine spray to 40’! Sooo something happened between about 8pm last night and this afternoon! |
| 5432 |
09 Sep 1996 @ 1800 |
--- |
research-mab |
09/09/1996 Minute Geyser was erupting to its usual 2’ or so but water was pooled into the “old vent” hole. I sure hope we’re open next year. |
| 30143 |
14 Sep 1995 @ 0825 |
--- |
research-mab |
9/14/1995 - inferred time - {Placed a marker on Rubble @ 8:30} Minute Geyser seems to be more often in steam phase than water when I’ve passed by over the last 3 days. |
| 30305 |
18 Sep 1993 @ 1200 |
--- |
research-mab |
9/18/93 - no time noted - Minute Geyser to about 2! |
| 30252 |
11 Aug 1993 @ 1130 |
--- |
research-mab |
8/11/1993 Minute Geyser 203°F removed numerous rocks stick... Quiet 0900, erupting 4 ft 1130 |
| 30251 |
11 Aug 1993 @ 0900 |
--- |
research-mab |
8/11/1993 Minute Geyser 203°F removed numerous rocks stick snip. Quiet 0900, erupting 4 ft 1130 |
| 30238 |
07 Jul 1993 @ 1200 |
--- |
research-mab |
7/7/1993 - no time noted - Minute G no action |
| 30467 |
10 Sep 1992 @ 1200 |
--- |
research-mab |
9/10/92 - no time noted - Back Basin – Minute quiet, Palpitator palpitating, |
| 30454 |
28 Aug 1992 @ 1200 |
--- |
research-mab |
8/28/1992 - no time noted - Minute Geyser erupted to about 5-6 ft for 15 minutes (report from a visitor) When I went to check it out there was H20 everywhere but it was only steaming !! |
| 30345 |
28 Jun 1992 @ 1200 |
--- |
research-mab |
6/28/92 - no time noted - Minute Geyser is constantly bursting to ~2’ |
| 30332 |
07 May 1992 @ 1517 |
--- |
research-mab |
5/7/92 Minute Geyser 1517 to 5’, heavy runoff into old vent. |
| 30319 |
26 Apr 1992 @ 1200 |
--- |
research-mab |
4/26/1992 - no time noted - - Minute- quiet but deep gurgling sound within vent |
| 30597 |
20 Aug 1991 @ 1200 |
--- |
research-mab |
8/20/91 – no time noted - Minute Geyser having bursts to 5’ or so. |
| 30489 |
16 May 1991 @ 1200 |
--- |
research-mab |
5/16/1991 - no time noted - Minute Geyser – my first major eruption! 1324 ie violent steam and water to 40’+ with a light jetting roar (whole thing very reminiscent of Porkchop in its heyday). The lower vent completely filled with water making a pool that goes nearly to adjacent Mushroom Pool. Had completely gone quiet by 1530. |
| 4707 |
29 Jun 1990 @ 1420 |
--- |
research-mab |
6/29/90
At 1420 as I walked thru Back Basin Dog’s Leg was drained.
Corporal had overflowed.
Minute Geyser was not erupting.
Veteran was making a lot of noise but not erupting |
| 30634 |
25 Jun 1990 @ 1200 |
--- |
research-mab |
June 25, 1990 - no time noted - Minute Geyser – today is constantly bursting to 2-3 ft with occasional 4-5 foot bursts. |
| 4703 |
11 Jun 1990 @ 1800 |
--- |
research-mab |
6/11/1990 Minute Geyser seems to have taken over where Porkchop left off. Misty water eruption to about 8 feet – spraying water on the trail. |
| 30701 |
09 Jul 1989 @ 1200 |
--- |
research-mab |
7/9/1989 - no time noted - Minute Geyser is showing periodic activity. It was not erupting when first observed, then began its usual 1- 1 ½ foot burst which increased to a maximum of 3-4 ft. Water began overflowing & then the eruption ended. All this in about 5 minutes, slight steam phase |
| 7588 |
05 Feb 1989 @ 0000 |
05 Feb 1989 @ 2359 |
JSJ |
Minute Geyser active for ~2 minutes. No specific time recorded. |
| 7646 |
05 Feb 1989 @ 1800 |
--- |
research-mab |
2-05-89
Minute Geyser – active ~2m |
| 7570 |
22 Jan 1989 @ 1800 |
--- |
research-mab |
1-22-89
Minute Geyser – Dormant. Water up ~5-6cm from floor of vent as it was on 1-16-89. |
| 7566 |
16 Jan 1989 @ 1800 |
--- |
research-mab |
1-16-89 Minute Geyser – Dormant- at least for several hours. No splashing what-so-ever. I have never seen this state of inactivity before (since 1970).
{generic afternoon time} |
| 30818 |
06 Aug 1988 @ 1200 |
--- |
research-mab |
8/6/1988 - no time noted - Minute Geyser – spluttering away- bursts of 6-12” |
| 33421 |
03 May 1986 @ 1213 |
--- |
research-mab |
May 3, 1986 Minute Geyser - A dual vent eruption was happening at 12:13 when I arrived. Both vents were playing 3 feet high and pouring a lot of water into the cove in front of the sinter platform they sit on. |
| 30942 |
03 Jul 1985 @ 1200 |
--- |
research-mab |
July 3 1985 – no time noted - Minute 203ºF at erupting vent. 144ºF at pool w. of erupting vent. Continually erupts 1-2 ft high. |
| 7612 |
11 Feb 1984 @ 1800 |
--- |
research-mab |
02/11/1984 Minute Geyser – Continuous spouting 1-1.6m, black beaded sinter, around SE vent. |
| 31035 |
08 Jan 1983 @ 1200 |
--- |
research-mab |
January 8 1983 - no time noted - Temps from Backbasinland… Minute Geyser 200º splashing violently 3 ½’
Old Vent 136º green algae rimmed |
| 31358 |
31 Jul 1982 @ 1200 |
--- |
research-mab |
7/31/1982 - no time noted - Minute “New vent” 202º splashing to 2’.
“Old vent” 150º constantly bubbling & no algae is growing in the vent. |
| 31248 |
20 Feb 1982 @ 1200 |
--- |
research-mab |
February 20 1982 - no time noted - Minute Geyser 3’4’ splashing violently out of the new vent 202° . Old Vent 130° no green algae, bubbling occasionally. |
| 31190 |
14 Jan 1982 @ 1200 |
--- |
research-mab |
January 14th 1982 - no time noted - Minute Geyser much more active than usual.
New Vent 200º splashing constantly 2-3’
Old Vent 200º that’s right 200º! It has lost its dark green algae lining. It now has grey slightly turbid H20 & bubbles occasionally. The temp is up 60º-70º from its normal 132º-138º temperature range. Maybe good old Minute Geyser will have a comeback! |
| 31578 |
15 Nov 1981 @ 1200 |
--- |
research-mab |
Nov 15 1981 – no time noted – {post-quake check} Minute Geyser 198° splashing 3-5’
= Old Vent 132° dark green/gray algae |
| 31530 |
30 Aug 1981 @ 1200 |
--- |
research-mab |
Sunday August 30 1981 - no time noted - Minute splashing to 3’ 200° old vent dark green algae with continual small bubbles rising to the surface 138° |
| 31437 |
02 Aug 1981 @ 1200 |
--- |
research-mab |
Sunday August 2 1981 The Basin Wide Disturbance has occurred! - no time noted - Minute Geyser- 202º periodic quiet periods followed by usual 2-3’ splashing
old vent – 136º unchanged – green-brown algae lining |
| 31404 |
06 Jun 1981 @ 1200 |
--- |
research-mab |
Saturday June 6 1981 - no time noted - Minute Geyser – perpetual eruption 2 to 8 feet, overflowing 204ºF.
Old vent, dingy green algae, overflowing 134ºF |
| 31780 |
20 Sep 1980 @ 1200 |
--- |
research-mab |
Saturday September 20 1980 - no time noted - Minute Geyser – erupting clear water 1-4 feet, overflowing 203ºF. Old vent green algae has been disturbed and partially torn off. Grey murky water 131º |
| 31689 |
16 Aug 1980 @ 1200 |
--- |
research-mab |
Sat Aug 16 - no time noted - Minute Geyser – Erupting continuously 1-3 feet 203°F. Overflow into old vent – 136°FF – lots of green algae- overflow out of old vent. |
| 31671 |
17 Jul 1980 @ 1200 |
--- |
research-mab |
July 17, 1980 - no time noted - Minute Geyser – active vent spraying 2 to 5 feet., 204ºF Old vent filled with algae, 148ºF |
| 31643 |
09 Jun 1980 @ 1200 |
--- |
research-mab |
June 9 1980 - no times - observations made over the week and entered on 9th - Minute Geyser – Dark geyserite spines abound, spraying 1 to 5 feet. 202ºF, older vent filled with dark green and orange algae, but has a temperature of 146ºF. Awfully hot for acidic algaes! |
| 32015 |
28 Sep 1979 @ 1200 |
--- |
research-mab |
September 28 1979 - no time noted - Minute Geyser – 201ºF ie, old vent 128º gentle bubbling |
| 31971 |
21 Sep 1979 @ 1200 |
--- |
research-mab |
Friday September 21 1979 - no time noted - More end of summer changes! Minute Geyser – perhaps a little more active hitting 2 to 4 feet. Clear water. 200ºF. Old vent with constant gentle bubble. 132ºF |
| 31859 |
05 Jul 1979 @ 1200 |
--- |
research-mab |
July 5 1979 - no time noted - Minute Geyser – active vent 201º spraying water to 3 ft. Old vent- few bubbles 143ºF |
| 32200 |
10 Sep 1978 @ 1200 |
--- |
research-mab |
09/10/1978 - no time noted - Changes in the Back Basin do not seem as extensive as changes noted yesterday in Porcelain Basin.
Minute Geyser – perpetually spouting – 200ºF |
| 32119 |
05 Jul 1978 @ 1200 |
--- |
research-mab |
07/05/1978 - no time noted - Minute – really spouting |
| 32068 |
01 Apr 1978 @ 1300 |
--- |
research-mab |
Sat April 1 1978 - inferred approx time - Minute Geyser is sloshing but not playing above the lip of the vent. |
| 32263 |
29 May 1977 @ 1000 |
--- |
research-mab |
Sunday May 29 - no time noted - morning - Minute Geyser was putting on a nice 2’ display while I was down there re-erecting a sign in the AM. |
| 22232 |
10 Jul 1976 @ 1800 |
--- |
research-mab |
July 10 1976 no specific time noted
New Feature between Monarch Geyser and Minute Geyser. The feature is east of the trail and as you face the runoff channel from Emerald Spring - - this new pool is to the right. Distance from trail is appropriately 30 feet. Water color is cloudy grey and it is hot. |
| 32352 |
01 Jun 1976 @ 0846 |
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research-mab |
June 1 1976 Minute Geyser 0846 – no splashing could be seen at all. |
| 10866 |
27 Sep 1975 @ 1800 |
--- |
research-mab |
09/27/1975 BRANCH SPRING {generic time}
Overflow was also occurring periodically in circular spring next to Minute Geyser. The several intervals observed were ~ 2 min duration of filling (~20 sec), overflowing and draining (down about 3”). There was ~45 sec of quiescence between these periods of activity. However, there was some fluctuation of the durations of each section of activity. |
| 5645 |
21 Aug 1975 @ 1800 |
--- |
research-mab |
08/21/1975 Minute Geyser – same charcoal gray material scattered about its runoff area. But not nearly as widespread as it was after the June 30th quake. Algal mat still present. No change in its activity, but nearby vent has more bubbles rising to surface. |
| 5639 |
20 Aug 1975 @ 1800 |
--- |
research-mab |
08/20/1975
Minute- algae mat growing thicker all the time. |
| 5623 |
01 Aug 1975 @ 1645 |
--- |
research-mab |
08/01/1975
Minute Geyser in a very dry phase at 1645 |
| 5616 |
21 Jul 1975 @ 1800 |
--- |
research-mab |
07/21/1975
Minute pouring out large quantities of water.
Less active vent of Minute geyser has become totally clear & the green algae are returning. |
| 32628 |
14 Jul 1975 @ 1200 |
--- |
research-mab |
07/14/1975 - no time noted - Minute Geyser has cleared up almost completely as have Monarch and Palpitator. |
| 32618 |
07 Jul 1975 @ 1200 |
--- |
research-mab |
7/7/1975 - no time noted - Minute Geyser – runoff beginning to clear up. Geyser doesn’t seem to spout as high. |
| 6196 |
01 Oct 1973 @ 1130 |
--- |
research-mab |
10/01/1973 1130 ish The larger (inactive) vent at Minute Geyser continues to give off more water as is indicated by greater prevalence of algae. |
| 32863 |
27 Sep 1973 @ 1200 |
--- |
research-mab |
Sept 27 1973 - no time noted - Temperatures taken today Minute Geyser erupting vent 201 eruption beginning.
= Minute Geyser “spring” vent 150 |
| 6141 |
13 Sep 1973 @ 0900 |
--- |
research-mab |
1973-09-13 Back Basin 900am - Green color algae very noticeable near Minute and is starting to appear in runoff channel to the east as well as the west side. |
| 33172 |
16 May 1972 @ 1200 |
--- |
research-mab |
May 16 1972 - no time - 199F – active all Summer. - Erupts about 1 to 1½ feet for about 11 mi, Time between eruption is about 12 mi. |
| 6311 |
14 May 1972 @ 1800 |
--- |
research-mab |
05/14/1972
The following geysers have been seen erupting since I arrived last night:
Ledge 6-10’, Iris 2-3’, Little Whirligig 15’, Basin 1’-2’, Fan 4’-5’, Bear Den, Feisty, Fireball 2-3’, Minute 1’-2’, Blue 7-15’, Africa 25-35’, Vixen 7’-15’, Dr Morey’s Porkchop 3’-5’, Echinus 10’-40’, Steamboat 5-20’ |
| 34084 |
08 May 1972 @ 0830 |
--- |
research-mab |
Approx inferred time based on Rubble Geyser entries = MAY 5/8/1972 = 1972 R.A. Hutchinson handwritten pages found in former Geo Box 72] -
Minute Geyser plays 1.5-2.5 feet occasionally 4’ |
| 33171 |
31 Jul 1971 @ 1200 |
--- |
research-mab |
July 31 1971 - no time - Three rocks taken out in June. Playing less than last year – water drains lower and takes longer to come up. Plays several times per hour – 92C (189F) The formation has a gray color more than last year. |
| 33170 |
11 Aug 1970 @ 1200 |
--- |
research-mab |
June 1970 – no change, playing most of the time. Stops for several minutes about every 20 to 30 min (?) Rocks still in vent.
= Aug 11 air 60F water 200F. The geyser is throwing water all the time, algae has grown into the runoff channel during late July and August. |
| 33166 |
19 Aug 1969 @ 1200 |
--- |
research-mab |
1969 – Plays for about 10 minutes about every 5 minutes.
Aug 19 1969- no time - 200ºF 1 to 2 feet. |
| 33169 |
02 Jun 1968 @ 1200 |
--- |
research-mab |
June 2, 1968 – playing at about 1 to 1.5 feet every 10 mi. |
| 33168 |
12 Jul 1967 @ 1200 |
--- |
research-mab |
July 12 1967 200ºF |
| 33167 |
22 Jun 1967 @ 1200 |
--- |
research-mab |
June 22 1967 - no time - 200ºF and a pH of 5 at 110ºF |
| 10803 |
01 Jul 1933 @ 0000 |
--- |
research-mab |
Report for June 1933: Minute Man Geyser – eruptions possibly 15 per day lasting 15 minutes and consisting of spurts 25-50 ft high and spaced 30-45 seconds |
| 10812 |
19 Sep 1931 @ 0000 |
--- |
research-mab |
Minute Man Geyser
Sept. 1-19 Few and irregular eruptions. Height- 30 ft. Duration – about 4 min. |
| 10819 |
31 Aug 1931 @ 0000 |
--- |
research-mab |
August 1931 Report:
Minute Man Geyser
Aug. 1-31 Plays several time per day at irregular intervals 4 min. |
| 10824 |
01 Aug 1931 @ 0000 |
--- |
research-mab |
July 25-31 1931 Report:
Minute Man Geyser (July 25-31)
No eruptions observed. Slight steaming. |