| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 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! |
| 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! |
| 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. |
| 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) |
| 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 @ 1800 |
--- |
research-mab |
9/6/1980 Basin Geyser – water at bottom of pool (new activity in many years ) lots of chugging. Hot! 205ºF |
| 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 |
| 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. |
| 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 @ 1800 |
--- |
research-mab |
06/04/1976 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 @ 1800 |
--- |
research-mab |
09/29/1973 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 |
| 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} |
| 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. |
| 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} |
| 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. |
| 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. |