| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 39997 |
20 Jun 2025 @ 2002 |
20 Jun 2025 @ 2021 |
GeyserBill |
Observed boiling at crater rim and one splash of about 1m in height. There did not appear to be any overflow. |
| 38306 |
24 Feb 2025 @ 1603 |
--- |
K.Cooper |
calm, no boiling or frying pan |
| 38097 |
25 Dec 2024 @ 1036 |
--- |
K.Cooper |
sizzling along N rim
evidence of water flowing halfway to teakettle |
| 38027 |
17 Dec 2024 @ 0738 |
--- |
K.Cooper |
frying pan on N edge. evidence of runoff too teakettle but not beyond |
| 37459 |
09 Oct 2024 @ 1221 |
--- |
Ben VL |
Platform the wettest I've seen it all year. Pool still sizzly boily. Looks like it's been having boils with some overflow over the North rim. |
| 37323 |
02 Oct 2024 @ 0728 |
02 Oct 2024 @ 0746 |
ddshepard |
Good boiling along front (north) rim as seen from boardwalk. |
| 36693 |
02 Sep 2024 @ 0855 |
02 Sep 2024 @ 1130 |
c.barwin |
Continuous South rim boiling to various heights. |
| 36633 |
30 Aug 2024 @ 1439 |
--- |
Pholli |
large boil, maybe 6-12inches over the rim closest to the boardwalk. lasted only a few seconds before subsiding, left waves around the rest of the edge |
| 36173 |
30 Jul 2024 @ 0923 |
--- |
Polly |
Having north rim boils |
| 35835 |
10 Jul 2024 @ 2006 |
10 Jul 2024 @ 2026 |
Ben VL |
Continuous sizzling noise with some boils in the center of the pool and on the N rim. Max 8"-10". |
| 34319 |
23 Apr 2024 @ 1020 |
--- |
DanS |
Strong edge boils |
| 33850 |
17 Jan 2024 @ 1547 |
--- |
K.Cooper |
quiet |
| 28944 |
21 Oct 2023 @ 1404 |
--- |
OFVEC |
audible bubbles heard from boardwalk, splashed a few inches at 1406. Water at edge of pool |
| 28574 |
30 Sep 2023 @ 1006 |
--- |
DanS |
Back to having some edge boils. |
| 28481 |
26 Sep 2023 @ 1318 |
--- |
DanS |
Placid steaming blue pool with no boiling at all from observation point. |
| 28110 |
08 Sep 2023 @ 0913 |
--- |
Kat |
Nice boiling |
| 27847 |
29 Aug 2023 @ 1031 |
29 Aug 2023 @ 1038 |
Delta4Heavy85 |
(Wc) Having boils every minute or so, the best observed was at 16:33:31, reaching maybe 6" high and nice and wide. |
| 26281 |
13 Jun 2023 @ 0922 |
--- |
Polly |
Looked like a strong boil - much more steam than usual (seen from the lower store area) |
| 25318 |
04 May 2023 @ 1123 |
04 May 2023 @ 1125 |
JarnoO |
(wc) Large, sustained boiling at N rim. One of these episodes had a sustained boil easily double the height (±3ft perhaps?) of normal. |
| 25310 |
01 May 2023 @ 1755 |
--- |
K.Cooper |
(wc) Period of decent boiling around this time, windy. Not tall, but wide and sustained. N Rim as well as Center and E side of the pool |
| 25292 |
30 Apr 2023 @ 1416 |
--- |
SantaFe108 |
N rim boil, 6" tall. |
| 25276 |
30 Apr 2023 @ 0930 |
--- |
RMichaels |
Based on amount of water collected around platform, it appears that Giantess recently had significant boiling events and runoff on the north side. |
| 25272 |
29 Apr 2023 @ 2027 |
--- |
minissa |
From wc, pool still looks high plus you can track strong runoff to right {from wc perspective} and down hill from steam it is putting up. {I realize everything looks steamier when the day wanes, but still...} |
| 25271 |
29 Apr 2023 @ 2006 |
--- |
K.Cooper |
(wc) High pool with lots of hot runoff visible from the cam. Strong boiling but mostly obscured by the steam. |
| 25263 |
28 Apr 2023 @ 1410 |
28 Apr 2023 @ 1510 |
K.Cooper |
(wc) Another period of large N Rim boiling began at 1410. Every few minutes there is a large (1-2ft maybe?) boil sustained for about 5 sec. Still continuing as of 1456. Hard to tell wind speed.Calming down around 1510, although ongoing nice boils. |
| 25261 |
28 Apr 2023 @ 1312 |
--- |
DanS |
Increased active boiling along entire North East rim with a few small splashes. Done by 1315. Followed up with a couple smaller boils. |
| 25208 |
22 Apr 2023 @ 1143 |
--- |
DanS |
Edge boils along NW rim |
| 24612 |
30 Oct 2022 @ 1210 |
--- |
SantaFe108 |
Large N-Rim boil, couldn't see through the steam cloud. Platform infront of N-Rim is wet and eastern runoff channel is wet too. |
| 24334 |
10 Oct 2022 @ 1749 |
--- |
K.Cooper |
(wc) The most steam I have ever seen for 60F and low humidity. A couple of nice (2ft) N rim boils. Seems hot. |
| 24196 |
03 Oct 2022 @ 1220 |
--- |
DanS |
Moderately strong boil |
| 23988 |
21 Sep 2022 @ 1805 |
--- |
underarockphoto |
Observed from the webcam. No visible boiling (cam is zoomed out and there is too much steam to see when zoomed in) but pronounced steam rising from runoff channels both north and south. Dry conditions and relatively warm temps out - not really conducive for runoff steam. |
| 23537 |
02 Sep 2022 @ 0946 |
--- |
Kat |
Low boils observed |
| 25195 |
25 Aug 2022 @ 1728 |
--- |
Craigmon99 |
Much calmer than my previous visits the last 9 days. Wind could have a factor(?) NE rim boils very noisy but harder to see. North rim pitiful at best. |
| 23387 |
24 Aug 2022 @ 1546 |
--- |
Kat |
Nice boil started at 1544 |
| 23353 |
22 Aug 2022 @ 1655 |
22 Aug 2022 @ 1704 |
K.Cooper |
(wc) Pool a tad higher than it has been recently, wind calm to moderate. No boils larger than a foot, but the boils we have observed have been pool wide and lasted more than 30sec a piece. All N-rim to center. |
| 23335 |
21 Aug 2022 @ 1647 |
--- |
Craigmon99 |
5 foot boil for 10 seconds
Largest boil I’ve ever seen personally |
| 23303 |
20 Aug 2022 @ 1435 |
20 Aug 2022 @ 1454 |
Craigmon99 |
Still constantly boiling. One 3 foot burst at 1445 |
| 23270 |
19 Aug 2022 @ 1344 |
--- |
SantaFe108 |
Boiling to around ~6" on the north and northwestern rim every few minutes. Boiling never ceases entirely between each increase in energy. |
| 23247 |
18 Aug 2022 @ 1252 |
--- |
Craigmon99 |
3 foot boil of note at 1252. Constant boiling from 1252 to 1330 when I left. Boiling continuous. |
| 23238 |
17 Aug 2022 @ 1950 |
--- |
Craigmon99 |
3 foot center boil. Sustained for 20 seconds
4 foot boil North and north east rim 10 seconds at 2008 |
| 23195 |
15 Aug 2022 @ 1000 |
15 Aug 2022 @ 1030 |
aferrara |
Boiling constantly, variable intensity. 5 6" boils, one was sustained nearly a minute at the NE rim. 1 1' boil at 1021 that led to activity on full northern half of the pool. Most activity on NxNE rim, but shortlived and weak activity viewed across the pool. |
| 23163 |
13 Aug 2022 @ 0615 |
13 Aug 2022 @ 1315 |
RMichaels |
Upon arrival, the runoff channel between Giantess and Teakettle Spring was wet down to the bottom of the hill (evidence of runoff overnight). Vault was at about mid-level, the same as it was 8/12/22. Most of the boiling events during the morning/afternoon were along the N and NW side of the pool (in contrast to the predominating N/NE and E boiling seen more frequently this season). Many wide boils seen throughout the morning. Most were about 6", but a handful were 1-2'. At 0919 a 2' N boil put heavy runoff out the N/NW side of the pool - enough to create a cascade of water down a jagged part of the sinter platform facing Teakettle spring. The best activity observed was in the half hour preceding Beehive's 1106 eruption. From 1027-1029 there was an extended period of N rim boiling that reached up to 2' and at times consumed large areas of the pool. At 1039 a wide NE boil that was 2-3 ft. put runoff out the N side of the pool. Generally impressive boils with moderate amounts of NW runoff continued until 1058, when I left after seeing Beehive's Indicator ie. Upon return at 1120, Vault had begun visibly dropping and the activity at Giantess had died down considerably. The one exception was at 1211, when a sudden NW boil 2' in height put a significant amount of runoff down the NW channel and again created a cascade along that side of the platform. No notable boiling events occurred from then until I departed at 1315. |
| 23145 |
11 Aug 2022 @ 1550 |
11 Aug 2022 @ 1700 |
aferrara |
Constant boiling, mostly in north and northwest of pool. Averaging a ~6" boil every 1-5 minutes. Four boiling episodes over 1'. Poolwide boils fairly frequent, with a few energetic 6+" boils in center. Frequent gentle boil in Vault, only once sustained for more than 60s. |
| 23120 |
09 Aug 2022 @ 1350 |
09 Aug 2022 @ 1520 |
RMichaels |
Vault's water level rose since yesterday and continued to rise slightly through this observation period. 1352 - 1 ft. NE boil with some runoff. 1402 wide N rim boil with multiple points of runoff. 1410 - estimated 2 ft. center pool/S rim boil. 1418 - impressive center pool/ S rim boil that I believe reached 3 ft. It did not maintain that height for long, but it broadened, lasted for 1m+, and was wide enough to cover the east half of the pool for probably 30s. 1422 and 1423 - low, wide N rim boils with runoff. 1425 and 1427 - wide N boils with notable runoff. Overall, activity quieted down after 1430 except for a NE boil at 1452 that put substantial runoff over the rim. |
| 22930 |
29 Jul 2022 @ 0745 |
29 Jul 2022 @ 1100 |
RMichaels |
Consistent wide boiling along the north/northeast rim for most of the morning, typically at intervals of about 10 minutes. One boil at 0912 easily reached three feet tall, though it quickly died down and was isolated to the NE rim. The most active period was from 0930-1040, with at least three wide (though short in height) N/NE rim boils that put runoff over the edge of the pool between 0930 and 1000. At 1025 there was a NE rim boil up to about 15" that had some force behind it. At 1037 a NW rim boil put a moderate amount of runoff out that side of the pool. Except for the 1037 event, most boils seemed concentrated on the NE rim. |
| 22927 |
29 Jul 2022 @ 1039 |
--- |
K.Cooper |
(wc) From around 1029 onward... Numerous wide, long-lasting, and some decently tall boils. Lots of white water visible from the camera, and only a minute (often less) between boils. Posting this note in hopes that someone in basin was watching it around this time, it would be nice to know how tall these boils actually are. Most boils appear to be along N-rim |
| 22922 |
28 Jul 2022 @ 1419 |
--- |
K.Cooper |
(wc) The camera has spent a fair amount of time on Giantess today: Mostly small but very wide boils, a lot of them are only a minute or two apart. The biggest boil of the day was at 1418, similar to the largest ones in the past few days. A lot of the boils are along the East rim. |
| 22887 |
27 Jul 2022 @ 2021 |
--- |
K.Cooper |
Center-south rim two-point boil (wc) Smaller in height than the ones yesterday, but wider. Again at 2022 but smaller and pretty much all South (and east?) Rim. It would be nice to have some in-basin confirmation of how large these boils actually are. The camera was only on Giantess from 2020 to 2023. |
| 22848 |
26 Jul 2022 @ 1123 |
--- |
JarnoO |
(wc) Very heavy north rim boil. It seemed only a hair away of triggering an eruption. Regardless, Giantess is very active along the northern rim as of writing. |
| 22549 |
13 Jul 2022 @ 2020 |
13 Jul 2022 @ 2050 |
RMichaels |
Giantess had 3 north rim boils that were 1-2 feet in height and sent water over the edge of the crater during this time. The runoff from the boils dampened half the width of the runoff channel near Teakettle Spring. |
| 22405 |
08 Jul 2022 @ 1530 |
--- |
minissa |
Again, from Obs Pt with binoculars, in the past half hour when the wind died down, good convection was visible over the vent, and there was one more north face boil sustained for about 15 seconds with water pushed out forward and to the right. Just sayin'... |
| 22403 |
08 Jul 2022 @ 1505 |
--- |
minissa |
From Observation Point with binoculars. Over the past half hour, there have been 3 short episodes of North face boiling with of put out the front, then to right and left. Pool had episodes of low but vigorous boiling, although the appearance of agitation was helped along by strong wind. |
| 21689 |
03 Jun 2022 @ 1239 |
--- |
underarockphoto |
Continued big boils. Some are forceful enough to dome the water in blue-bubble like fashion. Mostly center pool. |
| 21686 |
03 Jun 2022 @ 1147 |
--- |
K.Cooper |
Many large pool-wide boils this morning. Hard to estimate height from the wc, but I would guestimate a foot. Some boils are lasting 30 or so seconds. |
| 21687 |
03 Jun 2022 @ 1056 |
03 Jun 2022 @ 1147 |
Betty |
nice center boiling on Giantess |
| 21676 |
02 Jun 2022 @ 1906 |
--- |
K.Cooper |
Series of decent N-rim boils. Some of which were probably two feet. Center Pool had constant 2-3 inch "fizzling" for about 15min. |
| 21317 |
16 May 2022 @ 1440 |
--- |
Brando |
Boiling on the entire rim closest to boardwalk |
| 21163 |
04 May 2022 @ 1106 |
--- |
RMichaels |
~1 foot north rim boil. |
| 20775 |
01 Feb 2022 @ 1715 |
--- |
Brando |
Continuous rim boiling on the side closest to the cam |
| 20681 |
13 Jan 2022 @ 0947 |
--- |
Graham |
Noisy boil. Another at 0955. |
| 20665 |
11 Jan 2022 @ 1219 |
--- |
Graham |
Noisy boil. |
| 19772 |
28 Sep 2021 @ 1854 |
--- |
K.Cooper |
(wc) Very impressive boils over the last little while. None of them were exceptionally tall (I estimate most of them were only 6'') but there were a lot of them. It also seemed like the center of the pool and the N-rim were constantly sizzling a few inches in height. The pool was higher during this time than I have seen it recently, it was pushing out an impressive amount of water down the main channel and was even flowing a good amount of water into the second channel. We also saw what we thought was runoff coming down the "backside" (closest to the bw). The wind picked up and seemed to kill it around 1900. Entering a note because this was the hottest I have seen 'tess in a long time. |
| 19140 |
28 Aug 2021 @ 0945 |
28 Aug 2021 @ 2040 |
Ben VL |
Much increased activity from prev. days. High water level in Giantess' pool most of the day. Frequent boiling episodes, slowed down after the wind picked up but still put out semi frequent and relatively large activity despite the wind. Numerous 6"+ boils, several 1'+ boils, and a handful approaching 2'. Many with water pushing over the north or west rim. Near constant superheated boiling/bubbling across the pool. Boils are concentrated in the North/West quadrant, along the rim and towards the center of the pool, and are often doming, wide, or have multiple points.
Vault steadily rising most of the day, peaked and started dropping later in the afternoon. |
| 19125 |
27 Aug 2021 @ 1800 |
--- |
JarnoO |
(wc) Had some decent activity this morning, but overall it declined. Whether that was weather-induced I don't know, but the two days before had good boiling activity despite unfavorable winds. Perhaps Dome's playing a role in it, too, as its series started somewhere overnight. |
| 19097 |
26 Aug 2021 @ 1800 |
--- |
JarnoO |
(wc) Good activity throughout the day. Multiple decent and sustained large boiling episodes seen, though the majority were bubble showers. Episodes happened during strong winds as well. North semicircle was focus of activity, nothing seen from southeast rim. |
| 19069 |
26 Aug 2021 @ 1027 |
--- |
Brando |
(wc) Giantess is overflowing with center to pool wide boiling. |
| 19073 |
26 Aug 2021 @ 1008 |
--- |
Ben VL |
N rim boil, over a foot in two places with a healthy amount of runoff over the N rim (compared to what I have seen). Definitely the strongest boil I've seen over the last couple days. No followup. |
| 19058 |
25 Aug 2021 @ 1614 |
--- |
K.Cooper |
Lots of boils today |
| 19040 |
24 Aug 2021 @ 1700 |
24 Aug 2021 @ 1901 |
K.Cooper |
Some good boils during this time. A few of them were over a foot tall, involved the entire north rim, and lasted about 10s. Overall just a lot of boiling during this time. Transitioned to alot center pool boils around 1822. |
| 18975 |
21 Aug 2021 @ 1020 |
21 Aug 2021 @ 1100 |
Ben VL |
Vault up to more normal level after being low yesterday. Lot of bubbles in the back of the pool.
GTS's pool higher than yesterday, at or just below the sharp edge. Near constant simmering noise with boilups. One 1'-1.5' boil at 1034 that put some runoff on the NE side of the pool near the channel. Wind started increasing around 1047 and the activity has slowed considerably. |
| 18944 |
15 Aug 2021 @ 0935 |
--- |
Suzanne |
Overflowing with periodic very small boils (sizzling) at the edges of the pool. |
| 18936 |
14 Aug 2021 @ 2016 |
--- |
Suzanne |
Water is clear and calm and overflowing slightly into the southeast channel. |
| 18934 |
14 Aug 2021 @ 1733 |
--- |
K.Cooper |
Water beginning to become visible from the webcam. |
| 18932 |
14 Aug 2021 @ 1415 |
--- |
RMichaels |
Water is visible in Giantess' crater. |
| 18930 |
14 Aug 2021 @ 1346 |
--- |
Suzanne |
Calm. No visible water in the crater. |
| 18914 |
13 Aug 2021 @ 1209 |
--- |
Suzanne |
Huffing and subterranean boiling heard at 1209, 1213, and 1214.. No visible water. |
| 18913 |
13 Aug 2021 @ 1154 |
--- |
Brando |
As of 11:54, Giantess has barely any steam, no spiking or bursts, and the pool is completely empty. |
| 18912 |
13 Aug 2021 @ 0025 |
--- |
Suzanne |
I saw spikes from the boardwalk at Beehive. A few bursts to maybe 50 feet, although height was difficult to determine in the dark. Activity lasted 3 to 4 minutes. I saw and heard nothing afterwards and left the hill at 0150. |
| 18910 |
12 Aug 2021 @ 2042 |
12 Aug 2021 @ 2048 |
Brando |
20:42: Near constant pool wide eruptions, and spiking up to 70 feet or higher. 20:44: Huge steam plume with spiking to almost 100 feet with water being flown all the way down to the bottom of Giantesses mound. 20:48: phase ended, pool empty and barely any steam. |
| 18908 |
12 Aug 2021 @ 1755 |
--- |
Brando |
More big bursts going at 17:55, probably around 40-50 feet. Some spiking. Bursts are intermittent with an empty pool in between |
| 18906 |
12 Aug 2021 @ 1355 |
--- |
rfick09 |
Large bursts starting up again at 13:55 as seen on webcam |
| 18901 |
12 Aug 2021 @ 0602 |
--- |
Kat |
Water noted - spiking |
| 18899 |
11 Aug 2021 @ 1740 |
--- |
Rocco Paperiello |
approx start of steam phase |
| 18725 |
29 Jul 2021 @ 1217 |
--- |
SantaFe108 |
Heavy N rim boiling, more boiling at 1218, light boiling at 1222 and Vault bubbling. |
| 18388 |
12 Jul 2021 @ 1050 |
12 Jul 2021 @ 1053 |
JarnoO |
(wc) Heavy north rim boils 1050, 1051 and late 1053. Undoubtedly also before and after, but I only typed in these times in my notepad. Turned to a flat pool after Beehive and the remainder of the day, for the brief times the cam was looking at the Hill rather than Sawmill & co. |
| 18126 |
28 Jun 2021 @ 1334 |
--- |
TheHikingDude |
Brief 3 foot boil on north side |
| 17998 |
22 Jun 2021 @ 0812 |
--- |
K.Cooper |
2ft N-Rim boil |
| 17742 |
13 Jun 2021 @ 0954 |
--- |
K.Cooper |
(wc) Decent N-Rim Boin on Giantess at this time, Sustained for 13 seconds. Again at 0955, 0956, and 0957. |
| 17670 |
11 Jun 2021 @ 1034 |
11 Jun 2021 @ 1037 |
TheHikingDude |
Giantess was one inch below overflow at 10:34. 10:36: the whole north side was boiling to almost a foot. |
| 17476 |
05 Jun 2021 @ 1210 |
05 Jun 2021 @ 1212 |
Polly |
Nice rim boil seen from Crested Pool. We could see water at times. |
| 17373 |
02 Jun 2021 @ 1227 |
--- |
Graham |
2 foot boil. |
| 17366 |
02 Jun 2021 @ 0801 |
--- |
Graham |
Nice wide 2 feet plus boil. |
| 17326 |
01 Jun 2021 @ 0845 |
--- |
Graham |
1 to 2 foot boil on the rim. 0904, 0907 1 foot plus thick boil. |
| 17292 |
30 May 2021 @ 2041 |
--- |
Ben VL |
Pool is low. Wind is calm. Somewhat steady simmering in the pool. I saw a few N rim boils in the 15 mins or so I was there. Max 1'ish. Slope behind teakettle wet down to 30' or so beyond the bottom of the slope. |
| 17263 |
30 May 2021 @ 0922 |
--- |
Graham |
2 foot boil close to Vault. 1 foot at 0925. |
| 17112 |
17 May 2021 @ 1230 |
17 May 2021 @ 1235 |
RMichaels |
Pool has a constant sizzle. Saw one North rim boil to roughly 1 foot. |
| 17100 |
15 May 2021 @ 1650 |
15 May 2021 @ 1815 |
Micah Kipple |
Saw and heard an explosive boil 3-6 feet high while at Aurum. Went over to the Giantess bench to investigate and have been observing since Aurum. North rim boils are frequent and wide, but not very high and not putting out a lot of overflow. Between concentrated boils the entire pool is in a simmering boil. Vault is only 2 inches below the rim and bubbling on the South en. Giabntess's Pool level is very high. The North Runoff channel is wet to the base of the Mound. Will continue observations until hunger takes hold or activity decreases. |
| 16933 |
27 Apr 2021 @ 1322 |
--- |
DanS |
Intermittent moderate boiling alongEast rim |
| 16906 |
21 Apr 2021 @ 1757 |
--- |
TheHikingDude |
Camera really zoomed into Giantess, could see some bubbling on the Southwest and North sides. No center boil. |
| 16902 |
21 Apr 2021 @ 1158 |
21 Apr 2021 @ 1219 |
K.Cooper |
Multiple large boils, including N-rim, center pool, S-rim and full pool boils. Runoff has visibly increased over the last 24hrs (the area of orange bacteria has expanded) |