Blue Mud Steam Vent Geyser

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
28506 26 Sep 2023 @ 1706 --- MAB Full violent churning dark dark mud - NBK4 {Arrow-Spearpoint} had visible steam but no water {or mud} visible - no water visible and very little steam from Hydrophane either
28010 04 Sep 2023 @ 1639 --- cb water level is high in all 3 vents splashing blue mud in a 1' circumstance of each side vent
27290 28 Jul 2023 @ 2025 --- SantaFe108 Angrily churning blue-grey mud. Both side vents coated in wet mud and loudly burping. NBK-4 "Arrow" steaming quietly
27175 23 Jul 2023 @ 1429 --- mhreed Moderate roiling. Grey.
26948 08 Jul 2023 @ 1938 --- nails Churning dark gray water. Vent to right is grumbling.
26409 17 Jun 2023 @ 1515 --- SantaFe108 Churning mud in the center, Both side vents covered in wet mud but doing dry gurgling.
26361 16 Jun 2023 @ 0933 --- CrisG center vent churning blue mud approx 2ft below edge of crater. side vents gurgling
26311 14 Jun 2023 @ 1157 --- CrisG nearly full (approx 3" below rim of bowl on left side difficult to measure with sloshing) of blue grey water with moderate boil. side vents bubbling
25863 28 May 2023 @ 1956 --- SantaFe108 Churning blue mud in center vent. Both vents on either side are dry making burping noises.
25466 15 May 2023 @ 1922 --- ypcaribou Dark gray splashymud water. Still getting the gutteral burps from both side holes
24596 30 Oct 2022 @ 1714 --- ypcaribou Full & splashing blue mud. The vents either side are still burping and now have blue mud lining them. Together, the 3 vents kinda resemble Baby Yoda
24406 15 Oct 2022 @ 0943 --- MAB visible dark gray muddy water not too thick - vigorously splashing - nothing visible in side vents but they were noisy! NBK4 steamy w no visible water
24252 05 Oct 2022 @ 1240 --- cb Pool in the main vent is high, about 6" down from the rim closest to the bw, vigorous roiling boil with characteristically blue mud. Side vents are gurgling but not mud seen.
24077 24 Sep 2022 @ 1554 --- CrisG churning boil of dark grey mud. side vents gurgling and popping.
24078 24 Sep 2022 @ 1554 --- CrisG churning boil of dark grey mud. side vents gurgling and popping.
23962 20 Sep 2022 @ 1656 --- ypcaribou Churning and splashing like a pot of noodles about to boil over. In slate gray mud! vent holes either side are making post root beer burping noises.
23637 07 Sep 2022 @ 1145 --- MAB foot below east rim violently boiling - steam seen a few times from Vixen presumed from Blue Mud
23501 31 Aug 2022 @ 1128 --- cb Vigorously churning and boiling to ~1'. Still throwing lihht blue mud. Side vent toward Green Dragon Springs has been cleared of sticks and debris, is gurgling but no visable water seen.
23326 21 Aug 2022 @ 1045 --- ypcaribou Muddy medium gray water low in vent splashing vigorously!
23261 18 Aug 2022 @ 0937 --- MAB easily visible water level in a crazy but steady boil - approx a foot below lowest rim towards walk
23078 06 Aug 2022 @ 1133 --- cb I can see water! visable pool of vigorously boiling splashing water at the bottom of the vent. Sides still covered in blue mud
22985 02 Aug 2022 @ 1040 --- cb Water level below sight. tips of some splashes visable. Vent up to the rim is still coated in blue mud
22740 20 Jul 2022 @ 1851 20 Jul 2022 @ 1854 nails Noisy splashing. Some dark muddy splashes can be seen in the bottom of the feature but water level is too far down to see from boardwalk.
22320 04 Jul 2022 @ 1447 --- cb no more visable water. gurgling and splashes are VERY audible tho
22198 29 Jun 2022 @ 0958 --- mwolf splashing barely visible
22090 23 Jun 2022 @ 1803 --- cb main pool about 6" below rim closest to the boardwalk with a vigorous boil. side vents gurgling but no visable mud spray
21609 31 May 2022 @ 1507 --- cb Vigorous blue mud roiling boil. Both side vents are clear of debris and active.
21331 16 May 2022 @ 1117 --- Tara Water level about 3' down with vigorous bursting, muddy blue water. looks like there's some kind of metal bar in it.
21014 18 Apr 2022 @ 1704 --- MAB visible boiling dark brown water a foot below high-mud mark - could hear growls in the side vent - Arrow NBK4 steamy w no visible water - nothing seen draining from the large NE Hydrophane either
20249 31 Oct 2021 @ 1014 --- MAB noisy subterranean splashing - none visible above ground
20052 19 Oct 2021 @ 1343 --- cb YAY! This has its own designation! Water no visible but VERY audible splashing. Mud is mostly white with a few areas that are returning to blue mud. Side vent on the left is steamy
20581 30 Sep 2021 @ 1247 --- research-mab 09/30/2021 CB 1247: BLUE MUD STEAM VENT has a audible boil very deep in the vent that has a Echo like sound to it. no visible water & the splash zone is white, not blue. the side vent towrd green dragon spring is white and just steamy - - https://geysertimes.org/note.php?id=19811
20580 23 Sep 2021 @ 1039 --- research-mab 09/23/2021 CB 1039: BLUE MUD STEAM VENT still has no visable water or splashes but has very audible gurgling deep down in the vent, also the left side vent is mostly clear of debris and is steaming - - https://geysertimes.org/note.php?id=19699
20579 16 Sep 2021 @ 1041 --- research-mab 09/16/2021 CB 1041: BLUE MUD STEAM VENT > no visible water but can hear churning deep in the vent. Side vent on the left end is clear of debris and is steaming - - https://geysertimes.org/note.php?id=19608
20578 01 Aug 2021 @ 1023 --- research-mab 08/01/2021 CB 1023: Blue Mud Steam Vent is still low, the side vent toward Orby is completely covered with debris. The other side vent is clear of debris and steaming. - - https://geysertimes.org/note.php?id=18782
20577 11 Jul 2021 @ 1453 --- research-mab 07/11/2021 CB 1453: BLUE MUD STEAM VENT has no visable water but I can hear splashing deep in the vent - - https://geysertimes.org/note.php?id=18369
20576 05 Jul 2021 @ 1502 --- research-mab 07/05/2021 CB 1502: Blue Mud Steam Vent still has no visable spray of water but I can hear water sloshing around deep in the vent - - https://geysertimes.org/note.php?id=18281
20575 29 Jun 2021 @ 1335 --- research-mab 06/29/2021 CB 1335: Blue mud steam vent still has no visable water but can hear splashing down deep - - https://geysertimes.org/note.php?id=18183
20574 08 Jun 2021 @ 1119 --- research-mab 06/08/2021 CB 1119: Blue mud spring vent water is churning deep DEEP Down in the vent. water not visable. side vents are inactive and dry - - https://geysertimes.org/note.php?id=17573
20573 30 May 2021 @ 1607 --- research-mab 05/30/2021 CB 1607: blue mud steam vent has water churning WAY down in the vent. occasionally I can see a wave of water but the water is not readily visable. Both side vents are steaming but inactive - - https://geysertimes.org/note.php?id=17276
20532 24 Jan 2021 @ 1408 --- research-mab 01/24/2021 markwolf 1408: blue mud steam vent is quite low - mud is tan - - https://geysertimes.org/note.php?id=16823
20572 10 Oct 2020 @ 1028 --- research-mab 10/10/2020 1028 CB 1028: Blue Mud Steam Vent water level is up a few inches and both side vents are almost connected to the center or main vent. Main vent has a vigorous boil and both side vents are active - - https://geysertimes.org/note.php?id=16396
20571 06 Oct 2020 @ 1232 --- research-mab 10/06/2020 CB 1232: Blue mud steam vent pool has dropped ~8". The side vents are above the water/mud level and only the vent to the north is gurgling and occasionally throwing blue mud. The big center pool has a vigorous roiling boil. - - https://geysertimes.org/note.php?id=16343
20570 26 Sep 2020 @ 1615 --- research-mab 09/26/2020 CB 1615: Blue mud steam vent is VERY high and the main vent is overflowing into the 2 small vents on either side of it. All 3 pools have a blooping boil. - - https://geysertimes.org/note.php?id=16270
20569 29 Aug 2020 @ 1220 --- research-mab 08/29/2020 CB 1220: Blue Mud Steam Vent water/mud level is still very high and with a very active roiling boil. Both of its side vents are high and blurpping blue mud - -https://geysertimes.org/note.php?id=15894
20568 13 Aug 2020 @ 0813 --- research-mab 08/13/2020 CB 0813: Blue Mud Steam Vent pool is VERY high and vigorously boiling. about 3" below the nw side vent. A few vigorous boils and muddy water would slosh into the side vent. Both side vents are high and bubbling. - - https://geysertimes.org/note.php?id=15549
20480 20 Jul 2017 @ 1700 --- research-mab 7/20/2017 Fearless water level down 1650 Yellow Funnel + Blue Mud water level down @ 1700 - - NOTE to future researchers: This is the last Blue Mud SV entry found in logbooks up to the start of 2018 - the next log is in place at the museum and won't make it to the archives for a decade - entries will be sparse unless individuals enter from their personal logbooks or photos - after Oct. 2021 entries will pick up again after Blue Mud SV was added to GT - mab
20374 04 Oct 2016 @ 1200 --- research-mab 10/04/2016 Blue Mud Steam Vent’s water level is back up almost overflowing. [generic day time]
20375 29 Sep 2016 @ 1200 --- research-mab 9/29/2016 Blue Mud Steam Vent’s water level is so so low. You can see a stick caught in the feature that looks like it has been there for a long time. RP [generic day time]
20477 23 Sep 2016 @ 1200 --- research-mab 9/23/2016 Blue Mud Steam Vent water level is the highest I have seen it this summer. Almost to the rim. [generic day time]
20476 13 Sep 2016 @ 1200 --- research-mab 9/13/2016 Blue Mud Steam Vent is very full, at a high level actively bubbling almost overflowing its vent. [generic day time]
20475 07 Oct 2015 @ 1200 --- research-mab 10/7/2015 – Water/liquid back up for Mystic & Crater Yellow Funnel and Blue Mud still low. [generic day time]
20468 05 Oct 2015 @ 1200 --- research-mab 10/05/2015 Mystic, Green dragon, Crater & Yellow Funnel all MUCH lower liquid Blue Mud so low it sounds hollow as it bubbles deep. [generic day time]
20466 16 Sep 2015 @ 1200 --- research-mab 9/16/2015 The “muck erupter” {NBK6} I mentioned before is now bigger with somewhat clearer liquid. Blue Mud Steam Vent has a much higher liquid line than it did a few days ago. [generic day time]
20464 23 Aug 2015 @ 1030 --- research-mab 8/23/2015 Blue Mud Steam Vent so low you can’t see the water; Yellow Funnel Spring very active @ 1030am
20463 14 Jul 2015 @ 1200 --- research-mab 7/14/2015 -Blue Mud Steam Vent is very low [generic day time]
20462 19 Sep 2014 @ 1200 --- research-mab 9/19/2014 Blue mud steam vent has filled up. Perhaps this is b/c of the heavy rain we got last night. The small depressions to the north and south of the feature are full as well. [generic day time]
20461 31 Aug 2014 @ 1200 --- research-mab 8/31/2014 Blue Mud Steam Vent – water is so high it’s almost overflowing the rim. [generic day time]
20460 22 Aug 2014 @ 1200 --- research-mab 8/22/2014 Blue Mud Steam Vent water level has gone up 3” below rim. [generic day time]
20458 17 Jul 2014 @ 1200 --- research-mab 7/17/2014 Yellow Funnel Spring is filling up with water as well as Blue Mud Spring (Steam Vent). You are able to see the water in Blue Mud Steam Vent now. [generic day time]
20457 25 Aug 2013 @ 1200 --- research-mab 8/25/2013 Blue Mud Steam Vent seem[s] to have gone down a bit and seems to be less violent. [generic day time]
20455 12 Aug 2012 @ 1200 12 Aug 2012 @ 1300 research-mab 8/12/2012 Back Basin Observations 1200-1300 • Sagebrush lizard running on sinter behind Blue Mud • water visible in Blue Mud and Yellow Funnel
20454 24 Jun 2012 @ 1200 --- research-mab 6/24/2012 Water level down in Blue Mud Steam Vent Only splashes visible now. [generic day time]
20453 08 Jun 2011 @ 1200 --- research-mab 6/8/2011 Blue Mud Steam Vent has mud in it. [generic day time]
20450 02 Jun 1999 @ 1200 --- research-mab 6/2/99 We are experiencing a “localized disturbance” in the Back Basin. Look at Son of Green Dragon, “Orby” Geyser, Yellow Funnel and Blue Mud Steam Vent. They are all exhibiting “disturbance” type of activity. [generic day time]
20449 07 Jul 1998 @ 1200 --- research-mab 7/7/1998 Blue Teal (Blue Mud) – solid steel gray full pool, heavy boil [generic day time]
20448 04 Feb 1998 @ 1200 --- research-mab 2/4/1998 I have never seen Blue Mud Steam Vent this full and active. [generic day time]
20447 09 Aug 1997 @ 1200 --- research-mab 8/9/1997 Personally I have Never seen Blue Mud hold this high of a water level for this long. Very interesting!! [generic day time]
20446 10 Jul 1995 @ 1200 --- research-mab 7/10/1995 Couldn’t see the mud of Blue Mud - [generic day time]
20445 21 Aug 1994 @ 1200 --- research-mab 8/21/1994 Blue Mud Spring low – hear some splashing see no water. [generic day time]
20444 19 Jul 1994 @ 1200 --- research-mab 7/19/1994 Other observations: Greenish pool to left of Blue Mud Spring (Muddy Sneaker?) seems to have lower water level. Also, at Blue Mud Spring I could see occasional water splashes from trail. [generic day time]
20442 30 Jun 1994 @ 1200 --- research-mab 6/30 A large Basin wide water level drop today. Small vent below original Black Growler vent is dry. Crackling Lake Spring down. Black Pit down. “Sizzle Pot” dry. Black Hermit down. Green Dragon down. Hydrophane down. Gray Lakes down. Phillips Cauldron down. Blue Mud Steam vent down. You get the idea. I think (Guess) that we have just finished a weak disturbance.[generic day time]
20441 24 Jun 1994 @ 1200 --- research-mab 6/24/1994 Blue Mud Spring water level still down. [generic day time]
20440 19 Jun 1994 @ 1200 --- research-mab 6/19/1994 Blue Mud Steamvent was the lowest I’ve seen it this spring – it was at this level for most of last summer. [generic day time]
20439 12 Jun 1994 @ 1200 --- research-mab 6/12/1994 Blue Mud spring was vigorously boiling from the main vent – the 2 side vents were empty- still no sign of overflow. [generic day time]
20438 05 Jun 1994 @ 1200 --- research-mab 6/5/1994 Last night blue mud spring had again lowered – the 2 side vents had some water – would like to see if there is a pattern w/ the near overflow - drain seen so far this season [paraphrase mab]
20437 25 Apr 1994 @ 1200 --- research-mab 4/25/1994 Blue Mud Steam Vent is almost a geyser. Slate gray very agitated water is visible. [generic day time]
20436 11 Aug 1993 @ 1200 --- research-mab 8/11/1993 Blue Mud Vent 200° violently churning [generic day time]
20435 21 Jun 1993 @ 1200 --- research-mab 6/21/1993 temps Blue Mud Spring 199°F [generic day time]
20434 24 Aug 1992 @ 1200 --- research-mab 8/24/1992 Back Basin looks to be getting back to normal. Yellow Funnel is still full of H20. The Blue Mud vents are also full of H20 [generic day time]
20433 20 Aug 1992 @ 1200 --- research-mab 8/20/1992 Blue Mud Springs is as full now (or fuller) than I’ve seen it all summer and is very close to overflowing. [generic day time]
20432 16 Aug 1992 @ 1200 --- research-mab 8/16/1992 Blue Mud Spring has filled with its murky bluish water and is boiling violently. [generic day time]
20431 26 Apr 1992 @ 1200 --- research-mab 4/26/1992 - Blue Teal (Blue Mud) – within 6” of overflow rapid constant boil, dark gray but opaque [generic day time]
20430 16 May 1991 @ 1200 --- research-mab 5/16/91 Blue Mud Steam Vent {'Washing Machine' crossed out} – loud and active, gray, very soupy. [generic day time]
20429 08 Aug 1988 @ 1200 --- research-mab 8/8/1988 Blue Mud Steam Vent, has a loud deep churning motion. Bluish mud is visible on the sides but the fluid level is not visible from the trail. [generic day time]
20428 20 Sep 1987 @ 1200 --- research-mab 9/20/1987 Blue Mud Steam Vent is drained of water. [generic day time]
20427 05 Sep 1987 @ 1200 --- research-mab 9/5/1987 Blue Mud Steam Vent is full of dark water! The main bubbling/boiling action is out of the center 2 vents. The two side vents are full of water too. [generic day time]
20426 30 Aug 1987 @ 1200 --- research-mab 8/30/1987 Blue Mud Steam Vent– less foam, more water, roiling boil, very vigorous pH 4 - - - continuous, bursts are 4-4½ feet [generic day time]
20425 26 Aug 1987 @ 1200 --- research-mab 8/26/1987 Blue Mud Steam Vent is still foaming. [generic day time]
20424 24 Aug 1987 @ 1200 --- research-mab 8/24/1987 Blue Mud SteamVent is incredible. The center two vents, as...noted, have an incredible dark frothy foam coming out of them. I watched for about 15 minutes. The largest burst I saw was to 4’. The foam reminded me of a “fast forward” movie of some active mud pots. No foam can be seen in the 2 side vents. [generic day time]
20423 23 Aug 1987 @ 1200 --- research-mab 8/23/1987 Blue Mud Steam Vent looks different than I have ever seen it. It has a frothy foamy boil continuously, which occasionally becomes much more vigorous- splashing bluish mud deposits up above the rim. Temp is 204ºF The foamy black boil is very distinctive. [generic day time]
20488 01 Jan 1985 @ 0000 --- research-mab NOTE: Little to no mentions of Blue Mud Steam Vent in 1985 and 1986 in logbooks or reports - description in Aug 1987 implies they know what it looked like - if I find any I will enter them but may not remember I put this here - Lack of reports isn't that I skipped a year or two
20487 08 Jul 1984 @ 1200 --- research-mab 7/8/1984 Blue Mud Steam Vent 206°F [generic day time]
20422 24 Aug 1983 @ 1200 --- research-mab Aug 24 1983 Water level in Blue Mud Steam Vent has dropped so that 3 separate springs are exposed – all in vigorous boil [generic day time]
20421 26 Jul 1983 @ 1200 --- research-mab Tuesday July 26 1983 Blue Mud Steam Vent - 201° milky grey [generic day time]
20420 08 Jan 1983 @ 1200 --- research-mab January 8 1983 Blue Mud Steam Vent 200º [generic day time]
20486 07 Jul 1982 @ 1200 --- research-mab 7/7/1982 Blue Mud Steam Vent 200°F [generic day time]
20419 20 Feb 1982 @ 1200 --- research-mab February 20 1982 Blue Mud Steam Vent 204° water level very high (~8” from overflow) boiling vigorously [generic day time]
20418 14 Jan 1982 @ 1200 --- research-mab January 14 1982 Blue Mud Steam Vent 202° vigorous boil to 1’, tannish blue- turbid H2O [generic day time]
20485 15 Nov 1981 @ 1200 --- research-mab Nov 15 1981 ... back to Norris to take some temps...it’s good to be back to the basin & see all the changes that have occurred over the past month & a half. There was an earthquake measuring ~3 on the Richter centered in the Crazies a few days ago. This may account for the increased turbidity in many of the features. Also the amount of H2O outflow from the Back Basin particularly seems to be much higher than it was this summer. This could be partially due to snow melt as we have 15-20 inches on the ground now, but not entirely I don’t think. Anyway...Blue Mud Steam Vent Gray slightly turbid H2O – vigorous boil to 1½’ in center vent – superheated 206° [generic day time]
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