| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 28904 |
20 Oct 2023 @ 0759 |
--- |
MAB |
audible splashing |
| 26871 |
06 Jul 2023 @ 2012 |
06 Jul 2023 @ 2017 |
nails |
Occasionally splashing a small amount of water |
| 26502 |
20 Jun 2023 @ 1248 |
--- |
SantaFe108 |
Lazily spritzing in the uphill direction. |
| 26430 |
17 Jun 2023 @ 1608 |
--- |
JSJ |
Occasional lazy splash. |
| 25873 |
28 May 2023 @ 2028 |
--- |
SantaFe108 |
Occasionally spitting out small spikes of water uphill. |
| 25652 |
21 May 2023 @ 1352 |
--- |
SantaFe108 |
Occasionally tossing out ~6ft spikes of water. |
| 25534 |
18 May 2023 @ 0904 |
--- |
MAB |
quietly steaming - tossed one small lazy splash |
| 25148 |
11 Apr 2023 @ 1217 |
--- |
mhreed |
Splashing. |
| 25047 |
27 Feb 2023 @ 1444 |
--- |
MAB |
visible spritzing - too steamy to see channel below it EDIT: photos show a defined channel below the alcove but inconclusive whether Guardian is having full eruptions |
| 22759 |
21 Jul 2022 @ 1022 |
--- |
nails |
Occasional splashing |
| 22750 |
20 Jul 2022 @ 2024 |
20 Jul 2022 @ 2034 |
nails |
Occasionally splashing water. First few were like someone throwing a cup of water. Built to some four foot splashes, calmed back to gentle steaming by 2030. Cup sized splashing starting again at 2034. |
| 22329 |
04 Jul 2022 @ 1840 |
--- |
cb |
occasionally spitting water to 4' |
| 22171 |
27 Jun 2022 @ 0815 |
--- |
MAB |
audible splashes - also that pool below {west} of Guardian in Lewis Mudpot area full full full on June 3 dropped considerably |
| 21481 |
25 May 2022 @ 0740 |
--- |
TSBryan |
steady steam |
| 21454 |
23 May 2022 @ 0845 |
--- |
MAB |
low splashes |
| 21237 |
11 May 2022 @ 1602 |
--- |
MAB |
heavy steam column appeared in the spot where Guardian's plume was visible from Vixen back in the day when it was a continuous high pressure steam vent which may be of interest if we ever get closed intervals of Guardian - just an observation and speculation |
| 21122 |
28 Apr 2022 @ 1147 |
--- |
DanS |
Occasional splashes |
| 21114 |
27 Apr 2022 @ 1628 |
--- |
DanS |
Small intermittent sprays of water. |
| 21065 |
24 Apr 2022 @ 0752 |
24 Apr 2022 @ 0754 |
User34 |
Splashing |
| 21064 |
24 Apr 2022 @ 0742 |
--- |
User34 |
Some low splashes and then a spike of water to 10-15 feet |
| 21063 |
24 Apr 2022 @ 0732 |
--- |
User34 |
Gently puffing steam |
| 21035 |
18 Apr 2022 @ 0935 |
--- |
MAB |
quiet steam - looks like a few channels in the sands below but hard to get a view - no ice cone or remnants |
| 20278 |
03 Nov 2021 @ 0823 |
--- |
MAB |
puffing steam |
| 20177 |
28 Oct 2021 @ 0836 |
--- |
MAB |
light steam |
| 19133 |
28 Aug 2021 @ 1242 |
--- |
Graham |
Not in steam phase. Unsure when it quit this season? It was active this spring. |
| 16951 |
28 Apr 2021 @ 0926 |
--- |
MAB |
forced steam - no ice cone |
| 8760 |
18 Jun 2018 @ 1007 |
--- |
JSJ |
Moderately forceful steaming. |
| 29409 |
03 Jun 2012 @ 1600 |
--- |
research-mab |
6/3/2012 Black Growler (or Guardian written in 6/21) eruptive cycle 1600-1545 |
| 29406 |
21 May 2012 @ 1815 |
--- |
research-mab |
5/21/2012 Guardian appeared to undergo an eruptive cycle of some kind. Approx. 1815, only a wisp of steam rose from the vent. About 15 minutes later, steam and spray was forcefully jetting ~ 10 feet into the air from the vent. {note to future researchers - logbook said Black Growler - there was lots confusion this year since Guardian was in a high powered steam phase and they thought it was Black Growler until later in the summer - mab} |
| 30196 |
31 Aug 1994 @ 1200 |
--- |
research-mab |
8/31/1994 - no time noted - Met w/a geyser gazer who saw Ledge start on 8/28. he said from the boardwalk heading towards Dark Cavern he saw water spouting from Valentine & Guardian. |
| 10890 |
28 Sep 1993 @ 0800 |
--- |
research-mab |
9/28/1993 {generic time}
More on Guardian Geyser. It used to have a beehive shaped cone. Since it flipped its lid there is a visible vent and a dark red cap, which is the peeled back top of the cone |
| 10889 |
27 Sep 1993 @ 0800 |
--- |
research-mab |
9/27/1993 {generic time}
Guardian Geyser has blown off the north half of its cone |
| 10888 |
23 Sep 1993 @ 1611 |
--- |
research-mab |
9/23/1993
Guardian steam phase 1611 |
| 5370 |
24 Jun 1989 @ 1800 |
--- |
research-mab |
6/24/1989 Roved past Guardian Valentine. Guardian was having 1-2’ bursts
Valentin had a wet outflow. Scott & Carolyn set up sticks to check for future eruptions. |
| 31005 |
29 Jul 1984 @ 1200 |
--- |
research-mab |
Sunday July 29 - no time noted - Guardian is unusually steamy today! The force of the steam has greatly increased since my last close observation of 3 weeks ago. Beautiful deposits of brown, gold, orange and black have increased around the vent. {entry also includes new geyser 45 ft north of Guardian mab} |
| 7633 |
25 May 1984 @ 1800 |
--- |
research-mab |
5-25-84 Cistern
Guardian Geyser is a continuous spouter, has been for at least a year. What is noteworthy is its bronz[e] colored metallic sulfide deposit lining which extends out to the vents upper rim & is estimated to be at least a centimeter thick. |
| 7613 |
11 Feb 1984 @ 1800 |
--- |
research-mab |
02/11/1984 Guardian Geyser Continuous strong fumarole. |
| 31251 |
20 Feb 1982 @ 1200 |
--- |
research-mab |
February 20 1982 - no time noted - Guardian Geyser 202º still erupting with an occasional splash |
| 31194 |
15 Jan 1982 @ 1200 |
--- |
research-mab |
January 15th, 1982 - no time noted - Guardian Geyser 202º steaming gently and occasional splashes |
| 31581 |
27 Nov 1981 @ 1200 |
--- |
research-mab |
Nov 27th 1981 - no time noted - Guardian - 200º emitting steam mixed with fine spray; still very active |
| 31791 |
22 Sep 1980 @ 1200 |
--- |
research-mab |
Monday Sept 22, 1980 - no time noted - One week following the disturbance, some porcelain basin observations: Guardian Geyser -splashing 204ºF |
| 31731 |
06 Sep 1980 @ 1200 |
--- |
research-mab |
Sat Sept 6 1980 - no time noted - Guardian Geyser – steaming 204°F |
| 4598 |
21 Aug 1980 @ 0000 |
--- |
research-mab |
Aug 21 1980 It looks like Guardian geyser is acting up. Our VIP saw 6’ bursts of water coming out of the crack. I saw water 10” above the crack. |
| 31983 |
27 Sep 1979 @ 1200 |
--- |
research-mab |
September 27 1979 - no time noted - Guardian – 201ºF – steaming and splashing |
| 31946 |
20 Sep 1979 @ 1800 |
--- |
research-mab |
Thursday Sept 20 1979 - Disturbance check after 1730 - Guardian Geyser – in addition to steaming continually had periodic sprays of fine water 10 feet out in the direction of Valentine. Temperature 200ºF |
| 6008 |
06 Jun 1973 @ 0810 |
--- |
research-mab |
06/06/1973
Valentine in strong steam phase, but water cold in runoff channel.
Guardian steaming profusely 0810 |
| 6009 |
06 Jun 1973 @ 0800 |
--- |
research-mab |
06/08/1973 {no time- probably morning}
Guardian marker replace (2 ½ month interval?) |
| 6043 |
25 May 1973 @ 1800 |
--- |
research-mab |
05/25/1973 Guardian seemed to be steaming more than I recalled .{no time} |
| 6003 |
17 May 1973 @ 1800 |
--- |
research-mab |
05/17/1973
Guardian {marker} in place. |
| 5996 |
04 May 1973 @ 2000 |
--- |
research-mab |
05/04/1973
Ledge Valentine Ebony markers all replaced 8pm Guardian still has not budged. |
| 5980 |
30 Apr 1973 @ 1800 |
--- |
research-mab |
04/30/1973
Guardian Geyser -= Normally associated with Valentine, there has been no eruption at all this month or since at least March 28th. |
| 5993 |
27 Apr 1973 @ 0800 |
--- |
research-mab |
04/27/1973 (markers) only Guardian which has been inactive since March 28 was still in place. |
| 5944 |
31 Mar 1973 @ 1800 |
--- |
research-mab |
03/31/1973 from Valentine Summary ~ Guardian Geyser, which only plays immediately before or after an eruption of Valentine, was irregular, playing 11 out of the 20 possible times. |
| 5951 |
29 Mar 1973 @ 0945 |
--- |
research-mab |
03/29/1973 with Valentine Guardian did not play |
| 5950 |
22 Mar 1973 @ 1545 |
--- |
research-mab |
03/22/1973 with Valentine Guardian did not play |
| 5949 |
21 Mar 1973 @ 1545 |
--- |
research-mab |
03/21/1973 with Valentine Guardian did not play |
| 5947 |
16 Mar 1973 @ 0800 |
--- |
research-mab |
03/10/1973 with Valentine Guardian did not play
{Valentine stated as "night" in summary} |
| 5946 |
10 Mar 1973 @ 1204 |
--- |
research-mab |
03/10/1973 with Valentine Guardian did not play |
| 6423 |
19 Aug 1972 @ 1800 |
--- |
research-mab |
08/19/1972 Guardian Geyser – marker still in place – it has missed playing for the last 6 eruptions of Valentine Geyser. |
| 6391 |
13 Aug 1972 @ 1800 |
--- |
research-mab |
08/13/1972 Guardian G did not erupted in conjunction with Valentine its markers are still in place. Pinwheel down again very little water draining in, no runoff. {no time noted} |
| 6377 |
31 Jul 1972 @ 1108 |
--- |
research-mab |
07/31/1972 Guardian each time for 2 min- there was at least one eruption before these two |
| 6352 |
11 Jul 1972 @ 2337 |
--- |
research-mab |
07/11/1972 Guardian recycled at 1137 pm |
| 6342 |
18 Jun 1972 @ 1015 |
18 Jun 1972 @ 1035 |
research-mab |
06/18/1972 Guardian Geyser played 3 times; the first one was not seen but it washed away the marker & was apparently very near the time of the beginning of the eruption of Valentine. The second was at 10:30 for 2 minutes, the third at 1035 for 2m15s, the earlier one was again approximately twice as powerful as the last. |
| 6539 |
02 Sep 1971 @ 1800 |
--- |
research-mab |
09/02/1971 Guardian Geyser below Valentine appear to have a lot more vigor and activity: the opening to the “main vent” is larger and there is a considerable washing and erosion of the altered rhyolite ridge to the south of it. |
| 6557 |
15 Jul 1971 @ 0800 |
--- |
research-mab |
07/15/1971 Valentine Geyser & Guardian Geyser played sometime during the night. There is an increase in steam activity all around the Valentine, especially at Black Growler. |