| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 37711 |
24 Oct 2024 @ 1152 |
--- |
SantaFe108 |
Full of dark, rippling water. Visibly bubbling! |
| 37682 |
22 Oct 2024 @ 1543 |
--- |
MAB |
agitated clear water |
| 37505 |
10 Oct 2024 @ 1314 |
--- |
SantaFe108 |
Splashing OOS, rippling across dark, clear water. |
| 37347 |
03 Oct 2024 @ 1012 |
--- |
SantaFe108 |
Very steamy, vigorous splashing out of sight. |
| 35062 |
10 Jun 2024 @ 0902 |
--- |
SantaFe108 |
Full with dark rippling water. |
| 34230 |
19 Apr 2024 @ 0909 |
--- |
MAB |
low - clear water visible - too steamy but no real ripples seen |
| 29055 |
22 Oct 2023 @ 1453 |
--- |
SantaFe108 |
Rippling clear dark water. Audibly splashing out of sight. |
| 28684 |
07 Oct 2023 @ 0824 |
--- |
MAB |
steamy & gurgly w visible small waves |
| 28591 |
30 Sep 2023 @ 0827 |
--- |
MAB |
very steamy but saw visible ripples |
| 28298 |
17 Sep 2023 @ 1200 |
--- |
SantaFe108 |
Clear and rippling. |
| 27365 |
31 Jul 2023 @ 1036 |
--- |
MAB |
clear with tiny ripples - heavy subterranean grumbling boil noises |
| 26499 |
20 Jun 2023 @ 0850 |
--- |
SantaFe108 |
Clear water and rippling. |
| 26401 |
17 Jun 2023 @ 1123 |
--- |
SantaFe108 |
Clear water and rippling. |
| 25532 |
18 May 2023 @ 0906 |
--- |
MAB |
clear - tiny ripples from E end |
| 24376 |
14 Oct 2022 @ 1828 |
--- |
MAB |
ripples with growling boil noises |
| 21449 |
23 May 2022 @ 0847 |
--- |
MAB |
clear w visible small ripples |
| 20279 |
03 Nov 2021 @ 0825 |
--- |
MAB |
boil w ripples from east vent |
| 20176 |
28 Oct 2021 @ 0838 |
--- |
MAB |
too steamy to see much but visible ripples |
| 19000 |
22 Aug 2021 @ 0904 |
--- |
MAB |
clear water - small rippling waves |
| 18765 |
31 Jul 2021 @ 0840 |
--- |
MAB |
clear water visible w grumbly boil sounds |
| 18041 |
22 Jun 2021 @ 0852 |
--- |
MAB |
clear water is agitated- water level looks lower |
| 17719 |
12 Jun 2021 @ 1859 |
--- |
MAB |
agitated - very steamy on this hot day |
| 17072 |
12 May 2021 @ 0934 |
--- |
MAB |
Clear - bubbles from south edge |
| 16950 |
28 Apr 2021 @ 0929 |
--- |
MAB |
Clear - ripples |
| 9869 |
25 Aug 2018 @ 1044 |
--- |
cb |
( Basin geyser in Porcelain basin?) Audible gurgling sounds and thick steam coming from just above the big rock above the pool closest to the boardwalk. Its pool has strong convection waves! |
| 30140 |
03 Sep 1995 @ 1200 |
--- |
research-mab |
9/3/1995 - no time noted - Basin Geyser has water level approx 1½ ‘ below rim. |
| 30073 |
22 Jul 1995 @ 2100 |
--- |
research-mab |
7/22/1995 Water level in Basin Geyser down a few inches at 2100 – no overflow. |
| 30071 |
15 Jul 1995 @ 1200 |
--- |
research-mab |
7/15/1995 - no time noted - Basin geyser’s water level has dropped slightly and there is now no overflow. |
| 30039 |
19 Jan 1995 @ 1200 |
--- |
research-mab |
1/19/95 - no time noted - .. Basin Geyser is full and overflowing with a fairly good boil. Is it heating up?? |
| 30200 |
04 Sep 1994 @ 1200 |
--- |
research-mab |
Sept 4, 1994 - no time noted - Water is back in the system at Ledge. Basin geyser’s water level is back to “normal”. The Lewis Mud pots are still low. No sign of water from Dark Cavern. |
| 30190 |
31 Aug 1994 @ 1200 |
--- |
research-mab |
8/31/1994 - no time noted - After the Ledge eruption... Basin Geyser also drained and still to day it seems only ¼ full. |
| 30512 |
16 May 1991 @ 1200 |
--- |
research-mab |
5/16/1991 - no time noted - Basin – clear |
| 5369 |
24 Jun 1989 @ 1800 |
--- |
research-mab |
6/24/1989 Basin G continues to have milky, polymerized silica in water. |
| 4793 |
18 Jun 1989 @ 1600 |
--- |
research-mab |
6/18/1989 Basin Geyser is milky & overflowing! |
| 30957 |
21 Aug 1985 @ 1200 |
--- |
research-mab |
8/21/1985 no time - Basin Geyser = 203º Water erupting ½ to 1 foot in a rock crevice on the middle of the side nearest the boardwalk – on the side of the pool |
| 4850 |
20 Aug 1985 @ 1800 |
--- |
research-mab |
8/20/1985 Basin Geyser = 203º Water erupting ½ to 1 foot in a rock crevice on the middle of the side nearest the boardwalk – on the side of the pool |
| 7618 |
11 Feb 1984 @ 1800 |
--- |
research-mab |
02/11/1984 Basin Geyser Full & overflowing quietly, clear. |
| 31089 |
21 May 1983 @ 1200 |
--- |
research-mab |
May 21 1983 – no time noted ~morning - Basin Geyser – full of clear water, bubbling and overflowing slightly |
| 31255 |
20 Feb 1982 @ 1200 |
--- |
research-mab |
February 20 1982 - no time noted - Basin Geyser 198º water level down 8”. It is supporting a beautiful thermal garden. |
| 31199 |
15 Jan 1982 @ 1200 |
--- |
research-mab |
January 15th, 1982 - no time noted - Basin Geyser 202º H20 level down 1 1/2’ |
| 31585 |
27 Nov 1981 @ 1200 |
--- |
research-mab |
Nov 27th 1981 - no time noted - Basin Geyser 202° |
| 31554 |
12 Sep 1981 @ 1200 |
--- |
research-mab |
Sept 12 1981 - no time noted - Basin 204° clr water, 1 main vent w/contin bubbling 8” high, water level 2’ down from n.e. surrounding ground (rock) as has been common throughout summer |
| 31539 |
31 Aug 1981 @ 1200 |
--- |
research-mab |
Monday Aug 31 1981 - no time noted - Basin G water level high, 2 vents splashing 8” contin. 199° |
| 4864 |
26 Aug 1981 @ 1800 |
--- |
research-mab |
8/26/81 The museum crew left today. They did an absolutely fantastic job. Gave them a final intimate tour of Porcelain Basin. Everything erupted for them (Sunday, Fireball, Arsenic, Basin, Constant, Big Whirligig, Splutter Pot, Blue and Graceful) |
| 31515 |
14 Aug 1981 @ 1200 |
--- |
research-mab |
14 Aug 1981 - no time noted - Basin Geyser’s water is highest I’ve ever seen, almost level with lowest rock on north side of pool This is where the main vent is continuously bubbling about one foot high. |
| 4792 |
01 Aug 1981 @ 1800 |
--- |
research-mab |
08/01/1981 Basin Geyser’s water is highest I’ve ever seen, almost level with lowest rock on north side of pool This is where the main vent is continuously bubbling about one foot high. |
| 4790 |
06 Sep 1980 @ 1200 |
--- |
research-mab |
9/6/1980 - no time noted - Basin Geyser – water at bottom of pool (new activity in many years ) lots of chugging. Hot! 205ºF |
| 31687 |
05 Aug 1980 @ 1200 |
--- |
research-mab |
Aug 5, 1980 - no time noted - Basin Geyser 4’ down in steam 80°
- Ledge Geyser Main & Yellow vent 202°
- Decedent [sic] of Black Growler 202° |
| 20903 |
08 Jun 1980 @ 1800 |
--- |
research-mab |
June 8 1980 {generic time}
Basin Geyser– bottom vents – inactive (water visible way down) side vent on north, steaming 175ºF |
| 31931 |
11 Sep 1979 @ 1200 |
--- |
research-mab |
Sept 11 1979 -no time noted - Temps taken in Porcelain this AM - Basin Geyser 102° |
| 20902 |
25 May 1979 @ 1800 |
--- |
research-mab |
May 25 1979 {generic time}
Basin Geyser – a lazy fumerole 152º
{Late summer 1979l} NORRIS ANNUAL REPORT – Summer 1979 – Pittenger - Basin Geyser- is now nothing more than a quiet fumarole. Temperatures for this feature show a definite cooling trend over the summer months. ¶Not too many years ago this feature was known as Flotsam Pool. |
| 32239 |
06 Nov 1978 @ 1200 |
--- |
research-mab |
11/06/1978 - no time noted - Basin Geyser – I did some underground spelunking to get a temperature of this “dormant” feature. Boiling water a foot below the visible bottom was 204ºF |
| 20901 |
09 Sep 1978 @ 1800 |
--- |
research-mab |
09/09/1978 Sept 9 temperatures {generic time}
Basin Geyser – water too deep to reach, |
| 20900 |
22 Jan 1977 @ 1800 |
--- |
research-mab |
{generic time - no time available}
Jan 22 1977 - Basin Geyser: still drained
{No other 1977 observations recorded until 1977 Annual Report "dry, cool, and with only a small amount of steam drifting lazily from its opening"} |
| 5528 |
04 Jun 1976 @ 1200 |
--- |
research-mab |
06/04/1976 - no time noted - Not yet noted is the fact that Basin Geyser is now a fumerole, no water present. |
| 5653 |
22 Aug 1975 @ 1800 |
--- |
research-mab |
08/22/1975 Basin bubbling on both sides of its vent. |
| 5846 |
24 Sep 1974 @ 1800 |
--- |
research-mab |
09/24/1974 Basin – more active & some H20 is overflowing the basin area. |
| 6188 |
29 Sep 1973 @ 1600 |
--- |
research-mab |
09/29/1973 Porcelain Basin 4pm Basin Geyser has shifted vents completely during the summer and now is exhibiting quite a bit of bubbling NE of its new vent. |
| 6042 |
23 Jul 1973 @ 1800 |
--- |
research-mab |
07/23/1973 Mystic Spring muddy – also Milky Complex, Basin Geyser |
| 6465 |
17 Sep 1972 @ 1800 |
--- |
research-mab |
09/17/1972 Basin Geyser is now a cloudy dull green. |
| 6458 |
10 Sep 1972 @ 1800 |
--- |
research-mab |
09/10/1972 Basin Geyser during the past 5 days the color of the pool has again been changing – this time to a moderately cloudy blue-green color. |
| 6431 |
31 Aug 1972 @ 1800 |
--- |
research-mab |
08/31/1972 The water in Basin Geyser has been completely clear for about the last three days |
| 6424 |
19 Aug 1972 @ 1800 |
--- |
research-mab |
08/19/1972 Basin Geyser- has pretty much regained its opalescent blue color, however runoff is still very low. |
| 6417 |
17 Aug 1972 @ 1800 |
--- |
research-mab |
08/17/1972
Basin Geyser discharge is roughly 1/8th of what it was in June & July. Runoff temp max=56º, pool temp=92º |
| 6411 |
15 Aug 1972 @ 1800 |
--- |
research-mab |
08/15/1972
Basin Geyser - starting to turn to a blue gray color |
| 33290 |
09 Aug 1972 @ 1200 |
--- |
research-mab |
Basin Geyser - no time - Aug 9 activity changed the water to a gray color & killed all the algae in the drainage channel. |
| 33289 |
15 May 1972 @ 1200 |
--- |
research-mab |
1972 – May 15 – no time noted - 199F - Some spouting activity to one or two feet, but no geyser action - water opal this year, algae in drainage channels very colorful – green & yellow some red. |
| 6304 |
14 May 1972 @ 1800 |
--- |
research-mab |
05/14/1972
The following changes have been noted:
Basin Geyser is a beautiful almost opalescent blue with a steady run off, apparently no fluctuation, some sputtering 1’-2’ high at south end of pool. |
| 6306 |
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’ |
| 6579 |
09 Sep 1971 @ 1200 |
--- |
research-mab |
09/09/1971 Basin Geyser has returned to its activity similar to last summer with two exceptions - the pool never fills to overflowing and drops about four feet and a small vent in the rocks just west of the pool is much more active with constant ebullition. Some bursts as high as 3’. {morning time} |
| 6564 |
08 Aug 1971 @ 1230 |
08 Aug 1971 @ 1523 |
research-mab |
08/08/1971 When checked at approx. 12:30 Basin Geyser was an almost dry fumerole, empty at 3:23. |
| 6563 |
05 Aug 1971 @ 1800 |
--- |
research-mab |
08/05/1971 The eruptive behavior of Basin Geyser has changed. - there is a small continuous steam jet at the east end of the pool. |
| 6559 |
21 Jul 1971 @ 1000 |
--- |
research-mab |
07/21/1971 Basin Geyser water very low this am; no water last night at 6:00 pm.
{generic morning time} |
| 33288 |
19 Jul 1971 @ 1200 |
--- |
research-mab |
Basin Geyser
July 19 1971 – no time - ph 5.9 meter, 6.0 color
93.1C (199F)
Playing as last year – every few minutes will play five feet. A gray sinter is being deposited on rocks. |
| 6547 |
11 Jun 1971 @ 1000 |
--- |
research-mab |
06/11/1971 There was an impressive display this morning the Basin Geyser erupting to 10 feet, Africa playing to 30 feet and Little Whirligig all going off at the same time. {morning- no specific time noted} |
| 6596 |
07 Sep 1970 @ 1800 |
--- |
research-mab |
09/07/1970 Basin Geyser has had no real change, erupting to an average height of 4 to 6 feet. |
| 6619 |
01 Sep 1970 @ 1300 |
--- |
research-mab |
09/01/1970
A survey of pools and geysers in the area made during the {Ledge} eruption showed that Jetsam Pool had a larger volume (3 times) of run-off than usual. Basin was about completely drained with a small amount of water splashing about in the bottom of its fissure.
As I write this at 3:55 there is still a considerable amount of steam still emerging under pressure from the Ledge geyser. |
| 33287 |
14 Jul 1970 @ 1200 |
--- |
research-mab |
July 14 1970 - no time noted - The runoff channel has been extended on both sides and plants have been killed below the Basin. See picture. Has been seen to play 20 to 25 feet. The walk may have to be moved if this keeps up. |
| 6609 |
05 Jul 1970 @ 1800 |
--- |
research-mab |
07/05/1970 Basin Geyser erupted some twenty feet for a period of one minute.
{no specific time noted} |
| 33286 |
30 Jun 1970 @ 1200 |
--- |
research-mab |
June 1970 Basin has changed from a boiling spring to a gray muddy geyser like spring – The geyser activity is not true geyser activity. The spring water is bubbling from a foot at one time to three & five feet at other times, but the water will never stop bubbling. When the high bubbling takes place some water will run out of the basin, when the water drops the bubbling action is about two feet lower than the clear bubbling water was last year. [NOTE no date in Thermal Record – EOM] |
| 6589 |
05 Jun 1970 @ 1800 |
--- |
research-mab |
06/05/1970 Basin has started to act more like a geyser. The water in Basin is gray with clay. |
| 32973 |
02 Jun 1970 @ 1200 |
--- |
research-mab |
06/02/1970 - no time noted - Basin geyser has been playing this spring. |
| 33285 |
16 Jul 1969 @ 1200 |
--- |
research-mab |
1969 = Very little change. Boiling action with little overflow – 200ºF Boiling action coming from under rock on south side of spring
= July 16th 1969 - no time - 92ºC; 198ºF PH 5.45 |
| 33283 |
14 Jun 1967 @ 1200 |
--- |
research-mab |
June 4 1967 - no time - 198ºF - Started as a geyser in March 1965. Jean Swearingen was the first to see the geyser. The name came out of the Mammoth office. |
| 33284 |
02 Jun 1967 @ 1200 |
--- |
research-mab |
June 2 1967 - no time - Boiling action 8 to 14 in with no to very little overflow as last year. |
| 33002 |
27 Jul 1966 @ 0900 |
--- |
research-mab |
07/27/1966 - approx time no time noted -Temperatures – Flotsam (Basin) – 204º, Scummy – 184º, Constant – 180º, Pinwheel- 125º |
| 20585 |
20 Jul 1965 @ 1800 |
--- |
research-mab |
07/20/1965
Flotsam – Continues periodic (about 5 min) & is violent as it was yesterday. |
| 20584 |
19 Jul 1965 @ 1800 |
--- |
research-mab |
07/19/1965 Flotsam & Sunday – Both have been extremely active all day. Some of the eruptions of Flotsam were 25-30’. The eruptions of Sunday were frm 5-15’. |
| 6883 |
18 Jun 1965 @ 1800 |
--- |
research-mab |
06/18/1965 Basin – Good show most of the day. |
| 6882 |
17 Jun 1965 @ 1800 |
--- |
research-mab |
06/17/1965 Basin - Put on several good shows today, some eruptions were frm 30-40 ft. |
| 6877 |
14 Jun 1965 @ 1800 |
--- |
research-mab |
06/14/1965
Basin – It appears to me that the geyser is steadily decreasing in activity – time will tell. |
| 6870 |
08 Jun 1965 @ 1800 |
--- |
research-mab |
06/08/1965 Basin – Appeared to be a little stronger (more active) today than yesterday. |
| 33090 |
23 Oct 1964 @ 1800 |
--- |
research-mab |
Oct 23 - no time - Floatsam is way down (at least 3 feet) and water is churning constantly in a narrow rhyolite fissures. (Pictures taken) |
| 33087 |
09 Oct 1964 @ 1200 |
--- |
research-mab |
10/09/1964 - no time - Flotsam (Lewis temp) 184° (10-5 temp) 193° Oct 9 - 189° |
| 33080 |
28 Sep 1964 @ 1200 |
--- |
research-mab |
1964-09-28 - no time - Flotsam (Lewis temp 184°) Sep 28 temp- 195° (agitated, level up) |