| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 25048 |
27 Feb 2023 @ 1501 |
--- |
MAB |
not in ovfl on arrival - then it picked up - high mounds of snow somewhat obscuring view |
| 24605 |
31 Oct 2022 @ 1249 |
--- |
MAB |
low and a few bubbles that quieted - prob just finished a cycle |
| 24568 |
30 Oct 2022 @ 1416 |
30 Oct 2022 @ 1425 |
ypcaribou |
1416 first bubbles. 1420 no bubbles, low, rising. 1422 little bubbles and climbing to OF. 1424 in OF and 1st bubbles. |
| 24592 |
30 Oct 2022 @ 0858 |
--- |
MAB |
just ending a cycle - didn't stay for the next push |
| 24539 |
29 Oct 2022 @ 0841 |
29 Oct 2022 @ 0845 |
MAB |
low quiet pool @0841 - 1st bubble @0843 w slight outwash- heavy boil commenced @1:31 after 1st bubble with immediate heavy outflow - dropped out of ovfl @3:55 - next 1st bubble @0849 - it got quiet this time for a few seconds before launching into the heavy boil @0855 - so generally a 6min cycle with D ~4min if timing start from 1st bubble - if timing heavy boil to end D=approx 2.5 min |
| 24467 |
21 Oct 2022 @ 1815 |
--- |
MAB |
low - quiet - heavy boil didn't start til 1819 |
| 24413 |
15 Oct 2022 @ 0829 |
--- |
MAB |
light bubbles then into heavy doming boil up to 8inches within the same minute |
| 24379 |
14 Oct 2022 @ 1816 |
--- |
MAB |
IE heavy boil with lots runoff |
| 24385 |
14 Oct 2022 @ 1139 |
--- |
MAB |
low with no ovfl on arrival - 1141 game on with instantaneous outwash |
| 24309 |
07 Oct 2022 @ 0904 |
07 Oct 2022 @ 0910 |
MAB |
low with tiny bubbles run off wet but not steaming 0904 looks like it's just finishing - quiet @0905 - increase 0906 - heavy boil with overflow asap 0908 - off again 0910 |
| 24262 |
05 Oct 2022 @ 1420 |
--- |
cb |
Started at 1420 with overflow & roiling boil, murky gray on color. ended @ 1421 |
| 24100 |
25 Sep 2022 @ 0819 |
25 Sep 2022 @ 0825 |
MAB |
possibly just ending upon arrival w tiny bubbles from low water level - sm bubbles 0821 a tad stronger for 30s then quiet - heavy surge 0823 for 1m59s - seems not as heavy as yesterday but could be the foggy visibility |
| 24056 |
24 Sep 2022 @ 1544 |
--- |
MAB |
low and quiet but can't stay |
| 24065 |
24 Sep 2022 @ 1137 |
--- |
MAB |
bubbly but not the strong heavy boil - dropped out of ovfl 1138 - super quiet no bubbles @1140 - teensy bubbles resume 1141 - heavy boil comes on strong @1143 for 1m50s |
| 24035 |
23 Sep 2022 @ 1607 |
--- |
MAB |
low and quiet w tiny bubbles - 1609 heavy boil commences with instantaneous outwash - boil stops 1610 - no bear tracks visible between Monarch & Branch |
| 24046 |
23 Sep 2022 @ 0850 |
--- |
MAB |
Full w tiny bubbles but not a lot of overflow - 0851 big bulging boil began w immediate outwash |
| 23969 |
20 Sep 2022 @ 1849 |
20 Sep 2022 @ 1904 |
ypcaribou |
1849 on arrival, constant rolling "boil" with rippling all the way to edge of pool. Hearing a hissing or sizzly noise from nearby, I think to right of pool. 1853, water dropped below runoff channel. 1854 rising into runoff. Pool stopped bubbling and started a full sizzle. 1855 huge roil up that led to constant wave action to edges and into overflow. Looks like a bowl of soft Jello being shaken. 1857 back to center bubble and dropped out of overflow. 1900 refill starting. 1901 bubbling stopped and jiggle started. 1902 full on bubbling jiggle and into overflow. This thing is cool to watch! Oh, color is blue with yellow pool so green. 1904 back below overflow. At no time did it drain - drop below overflow means out of the runoff channel. That's as far as it dropped. Headed back to Cistern! |
| 23643 |
07 Sep 2022 @ 1004 |
--- |
MAB |
full but not flowing - may have just quieted |
| 23393 |
24 Aug 2022 @ 1751 |
--- |
MAB |
well below overflow - light center boil
south shoulder vents glurging |
| 23398 |
24 Aug 2022 @ 0905 |
--- |
MAB |
quite agitated- when steam cleared could see a wide roil |
| 23333 |
21 Aug 2022 @ 1222 |
21 Aug 2022 @ 1250 |
ypcaribou |
Water is opaque, dirty beige. Small bubbling in middle causing ripples to edge. Just below overflow to "V" that leads to runoff channel. Feature to left with 2 holes is gurgling and burping but no water seen.
1226 Large roiling a foot or so in diameter began, splashing to a foot, pool filled fully and overflowed. Returned to quiet by 1228.
1230 filling. 1231 roiling and splashing to overflow. Dropped.
1236 fill and roil and splash. Overflow. Calm and drop by 1238.
1240 filling, 1241 start, overflow, 1242 calm and drop, 1243 water down from V.
1245 filling, 1246 start, calming 1247. Droppong. Out of V at 1249.
When I say drop, its just to top of pool edge down from V for overflow. Does not drain.
Thunder heard, dark clouds rolling in. Up the hill I go! |
| 23257 |
18 Aug 2022 @ 0916 |
--- |
MAB |
low & fairly quiet - faint boil |
| 22991 |
02 Aug 2022 @ 1343 |
--- |
cb |
overflowing with a vigorous boil. Feature 6' to the left is gurgling, no visable water. |
| 22889 |
27 Jul 2022 @ 1846 |
--- |
MAB |
low and quiet - moved on quickly |
| 22900 |
27 Jul 2022 @ 1219 |
--- |
MAB |
dead calm then started asap immediately in overflow |
| 22864 |
26 Jul 2022 @ 1248 |
--- |
cb |
color is a light milky greenish color with a weak boil and just below overflow. Feature with 2 vents that resemble Bear Claw, toward Trio sink area, are gurgling and thunking. no visable water |
| 22662 |
17 Jul 2022 @ 1507 |
--- |
MAB |
steady boil w strong ovfl |
| 22268 |
01 Jul 2022 @ 1912 |
--- |
MAB |
low - quiet - no outwash |
| 22273 |
01 Jul 2022 @ 1347 |
--- |
MAB |
heavy boil watery green brown |
| 22244 |
30 Jun 2022 @ 1209 |
--- |
cb |
pool low, not overflowing, no boil |
| 22157 |
27 Jun 2022 @ 1839 |
--- |
MAB |
violent boil |
| 22163 |
27 Jun 2022 @ 1226 |
--- |
MAB |
heavy boil w good runoff - light brown color |
| 22083 |
23 Jun 2022 @ 1611 |
--- |
cb |
vigorous boil, muddy color, overflowing |
| 21700 |
03 Jun 2022 @ 1930 |
--- |
MAB |
light boil with waves - barely in overflow |
| 21706 |
03 Jun 2022 @ 1210 |
--- |
MAB |
WAY low - fairly calm |
| 21479 |
25 May 2022 @ 0824 |
--- |
TSBryan |
quiet, slightly below overflow |
| 21440 |
23 May 2022 @ 1851 |
--- |
MAB |
heavy center boil w good flow |
| 21453 |
23 May 2022 @ 1300 |
--- |
MAB |
below ovfl and just pulsing into the channel with only light center convection when boil began - pushing waters down the channel immediately |
| 21340 |
17 May 2022 @ 0844 |
--- |
mhreed |
Murky grey, slight boil, just at overflow. |
| 21291 |
15 May 2022 @ 1927 |
--- |
MAB |
stronger boil than at 1300 but still no overflow - either low again or still |
| 21295 |
15 May 2022 @ 1258 |
--- |
MAB |
low - watery green - very few bubbles - no flow |
| 21234 |
11 May 2022 @ 1928 |
--- |
MAB |
trickle of ovfl down the channel but pool is low and quiet |
| 21242 |
11 May 2022 @ 1250 |
--- |
MAB |
murky green - below overflow & quiet |
| 21196 |
06 May 2022 @ 1933 |
--- |
MAB |
mild center boil just inching to overflow- when suddenly strong center boil commenced and strong flow went down the channel - got FLIR - ok that was fun and good timing |
| 21203 |
06 May 2022 @ 1307 |
--- |
MAB |
way low w bubbles - receiving cool waters from old road grade across the trail |
| 21089 |
26 Apr 2022 @ 1851 |
--- |
MAB |
low with only quiet convection |
| 21101 |
26 Apr 2022 @ 1301 |
--- |
MAB |
very low - well below ovfl - a few tiny bubbles |
| 21026 |
18 Apr 2022 @ 1303 |
--- |
MAB |
steady boil - in ovfl - dirty green color |
| 20324 |
06 Nov 2021 @ 1609 |
--- |
MAB |
another walkup to a calm pool with a few bubbles - while standing there heavy boil begins |
| 20336 |
06 Nov 2021 @ 0815 |
--- |
MAB |
light boil - pool below overflow |
| 20292 |
04 Nov 2021 @ 1639 |
--- |
MAB |
calm - just below overflow- as I wrote it down I could see overflow just creeping down the channel - just a few bubbles at that point |
| 20309 |
04 Nov 2021 @ 0836 |
--- |
MAB |
full w slight ovfl - light bubbles - 0837 vigorous center boil began |
| 20243 |
31 Oct 2021 @ 1707 |
--- |
MAB |
wet ovfl - full with convection but no boiling |
| 20259 |
31 Oct 2021 @ 0842 |
--- |
MAB |
full but not boiling w no overflow upon arrival - bpil started tail end of same minute |
| 20195 |
29 Oct 2021 @ 1637 |
--- |
MAB |
light boil - well below overflow |
| 20201 |
29 Oct 2021 @ 0857 |
--- |
MAB |
light boil - slight ovfl |
| 20166 |
28 Oct 2021 @ 1709 |
--- |
MAB |
a tad lower not quite in overflow |
| 20165 |
28 Oct 2021 @ 1529 |
--- |
MAB |
light boil slight overflow |
| 20102 |
24 Oct 2021 @ 1744 |
--- |
MAB |
center boil some ovfl |
| 20114 |
24 Oct 2021 @ 0929 |
--- |
MAB |
Quiet no boil - pool edges showing 6in to 1ft - no ovfl obviously |
| 20082 |
22 Oct 2021 @ 1735 |
--- |
MAB |
light center boil - not quite reaching overflow |
| 20092 |
22 Oct 2021 @ 0859 |
--- |
MAB |
quiet - no boil - no overflow |
| 20016 |
17 Oct 2021 @ 1726 |
--- |
MAB |
overflow - convection then boil started w my walkup {water visible in the 2nd hole on the shoulder} |
| 20028 |
17 Oct 2021 @ 0912 |
--- |
MAB |
center boil w overflow - {breakout on south shoulder audible boil but no water visible } |
| 19947 |
10 Oct 2021 @ 1658 |
--- |
MAB |
light center boil - brownish green color |
| 19954 |
10 Oct 2021 @ 0924 |
--- |
MAB |
busy center boil - gray green color |
| 19916 |
05 Oct 2021 @ 1752 |
--- |
MAB |
Strong loud boil with heavy waves heard but not seen at 0851 - at 1752 observed moderate boil - pool was a brownish green color |
| 19907 |
03 Oct 2021 @ 1325 |
--- |
ypcaribou |
Vigourous roil in middle. Slight overflow. Milky but transparent light sea glass green. |
| 19908 |
03 Oct 2021 @ 0736 |
--- |
ypcaribou |
Mostly calm pool with gumball-sized bubbles floating up. Possibly just below overflow but too steamy to tell. Slightly milky but trsnsparent light sea glass green |
| 20494 |
20 Jun 2012 @ 1200 |
--- |
research-mab |
6/20/2012
“Branch Spring” by Minute Geyser murky; clear yesterday [generic day time] |
| 20495 |
24 Jun 2000 @ 1200 |
--- |
research-mab |
6/24/2000
Dr Nordstrom - USGS doing research at Minute and pool next to it (Branch Spring?) - 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 [generic day time] |
| 20496 |
20 Sep 1998 @ 1200 |
--- |
research-mab |
9/20/1998 Branch Spring 172ºF (not as hot as I thought) [generic day time] |
| 20497 |
13 Sep 1998 @ 1200 |
--- |
research-mab |
9/13/1998 The spring (I believe unnamed) just beyond Minute appears to be superheated. I’ll measure it tomorrow. {see 9-30 entry mab} {Sketch map with arrow “This spring is named “Branch Spring”} [generic day time] |
| 20528 |
07 May 1992 @ 1517 |
--- |
research-mab |
5/7/92
{mushroom in log} – 1517 boiling steadily with a strong overflow |
| 20527 |
26 Apr 1992 @ 1200 |
--- |
research-mab |
4/26/1992
{mushroom in log} – quiet, murky [generic day time] |
| 20526 |
16 May 1991 @ 1200 |
--- |
research-mab |
(5/16/91) Note about Minute Geyser includes ‘lower vent completely filled with water making a pool that goes nearly to adjacent Mushroom Pool’ confirming mis-identification of mushroom thru 1998 [generic day time] |
| 20498 |
06 Aug 1988 @ 1200 |
--- |
research-mab |
8/6/1988
Pool to S of Minute - milky blue in color; gentle boiling in center [generic day time] |
| 20525 |
24 Aug 1987 @ 1200 |
--- |
research-mab |
8/24/1987
{mushroom in log} - greenish color, lots of boiling in the center of the pool. It is milky so that I can’t see into the water more than 1’ or so [generic day time] |
| 20524 |
14 Sep 1984 @ 1200 |
--- |
research-mab |
9/14/1984 seen erupting [no duration of observation - generic day time] |
| 20523 |
13 Sep 1984 @ 1200 |
--- |
research-mab |
9/13/1984 seen erupting [no duration of observation - generic day time] |
| 20522 |
11 Sep 1984 @ 1200 |
--- |
research-mab |
9/11/1984 light boil only [no duration of observation - generic day time] |
| 20521 |
09 Sep 1984 @ 1312 |
--- |
research-mab |
9/9/1984 seen erupting |
| 20520 |
04 Sep 1984 @ 1200 |
--- |
research-mab |
9/4/1984 light boil only [no duration of observation- generic day time] |
| 20519 |
29 Aug 1984 @ 1200 |
--- |
research-mab |
8/29/1984 light boil only [no duration of observation - generic day time] |
| 20518 |
28 Aug 1984 @ 1200 |
--- |
research-mab |
8/28/1984 erupting [no duration of observation - generic day time] |
| 20517 |
24 Aug 1984 @ 1200 |
--- |
research-mab |
8/24/1984 continuous light boil only [no duration of observation - generic day time] |
| 20514 |
21 Aug 1984 @ 1200 |
--- |
research-mab |
Aug 21 1984
UNNG#18 - became active as a geyser on August 21st - Before this it remained a generally clear greenish pool. The few recorded eruptions consisted of boiling to 2" - 3" with moderate discharge. The water level drops about 2" after the eruption. Recorded intervals ranged between 27½ to 34 minutes, with durations of 22½ to 28 minutes - periods of activity seemed to be related with the disturbances of 8/19, 8/27, 9/6, & 9/14 [generic day time] |
| 20516 |
21 Aug 1984 @ 1159 |
--- |
research-mab |
8/21/1984 periodic activity 1st seen [generic day time] |
| 20515 |
20 Aug 1984 @ 1200 |
--- |
research-mab |
8-20-1984 {RP unng 18}
The pH on 8/20 was between 3.0 & 3.4 - during times when this was an active geyser, the water turned a very slightly milky green |
| 20513 |
12 Jul 1984 @ 1200 |
--- |
research-mab |
7/12/1984
Minute splashing vent 202° - old vent 148° -
Branch {Mushroom in log} 172° [generic day time] |
| 20512 |
08 Jul 1984 @ 1200 |
--- |
research-mab |
7/8/1984
Branch {Mushroom in log} Spring 174º F – greenish yellow color – bubbling from vent [generic day time] |
| 20511 |
08 Jan 1983 @ 1200 |
--- |
research-mab |
January 8 1983
Branch Spring 164º overflowing [generic day time] |
| 20510 |
20 Feb 1982 @ 1200 |
--- |
research-mab |
February 20 1982
Branch Spring 164° green turbid H2O, overflowing slightly [generic day time] |
| 20509 |
14 Jan 1982 @ 1200 |
--- |
research-mab |
January 14th 1982
Mushroom Geyser 118º bright green algae lined orange ring around outside. I think that mushroom has seen its better days. R.I.P. [both included before the Mushroom name was mistakenly transferred to Branch 1984-1998] - - -
Branch Spring boiling more vigorously than usual green turbid H20 180º [generic day time] |
| 20508 |
30 Aug 1981 @ 1200 |
--- |
research-mab |
Sunday August 30 1981
Branch green-blue with continual small bubbling, slight overflow 166° [generic day time] |
| 20507 |
20 Sep 1980 @ 1200 |
--- |
research-mab |
Saturday September 20 1980
Branch Spring– normal turbidity 168ºF, slight overflow [generic day time] |
| 20506 |
17 Jul 1980 @ 1200 |
--- |
research-mab |
July 17, 1980
“Branch Spring” - Murky grey green with small overflow – 174ºF [generic day time] |
| 20505 |
21 Sep 1979 @ 1200 |
--- |
research-mab |
Friday September 21 1979
More end of summer changes!
“Branch Spring” - murky green, not much different. 164ºF [generic day time] |
| 20504 |
05 Jul 1979 @ 1200 |
--- |
research-mab |
July 5 1979
Minute Geyser – active vent 201º spraying water to 3 ft. Old vent- few bubbles 143ºF - - -
“Branch Spring” (The pool S.E. of Minute Geyser) 170ºF [generic day time] |
| 20503 |
24 Jun 1979 @ 1200 |
--- |
research-mab |
June 24 1979 Sunday
The pool to the southeast of Minute Geyser is very turbid this afternoon, a change from morning [generic day time] |