| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 25058 |
27 Feb 2023 @ 1532 |
--- |
MAB |
Very pretty clear blue! Runoff only towards Echinus - Muddy Pool and westerly channel snow covered |
| 24644 |
05 Nov 2022 @ 1600 |
--- |
mhreed |
Dropped to only a trickle of overflow. |
| 24531 |
29 Oct 2022 @ 1407 |
--- |
MAB |
Clear w strong center roil - muddy pool and 1st pool on the right receiving flow again but not entirely full |
| 24470 |
21 Oct 2022 @ 0834 |
--- |
MAB |
Below E/W overflow maybe an inch - nothing flowing in channels to muddy pool and 1st pool on the west - light boil |
| 24282 |
06 Oct 2022 @ 1326 |
--- |
cb |
Cistern Spring is overflowing in all directions; more so out the established channel than toward Veteran. |
| 24032 |
23 Sep 2022 @ 1633 |
--- |
MAB |
water not visible from lower platform - seemingly out of sight from 1st switchback but in deep shadow - no obvious bear tracks visible near the opening between Emerald and Steamboat |
| 24033 |
23 Sep 2022 @ 1115 |
--- |
MAB |
water barely visible from lower platform |
| 23971 |
20 Sep 2022 @ 1916 |
--- |
ypcaribou |
No obvious rise or fall in water level. Still half way between inner tube and top. |
| 23951 |
20 Sep 2022 @ 1540 |
--- |
ypcaribou |
Water about half way between top and inner tube. Bubbling in middle. Windy so hard to tell if bubbles are causing any of the ripples.A spooky teal. |
| 23933 |
20 Sep 2022 @ 1055 |
--- |
bbev |
1D,20hrs PSBE: CS is 24-26" below overflow, about half way down to the inner tube.Occasional bubbles rising to surface, would not call it a boil. |
| 23494 |
31 Aug 2022 @ 1025 |
--- |
cb |
VERY low, clear, typical boil & only overflowing out the established channel |
| 23314 |
21 Aug 2022 @ 0719 |
--- |
ypcaribou |
Nice, deep, sea glass blue, roiling in middle, water lapping at all edges. Flow out of established channel. Nice orange in front to right area where water looks to have been but now just damp with no or little standing water. Steam increases when Steamboat does a good splash. Steam also increases at Echinus and Crater Spring at same time. |
| 23106 |
08 Aug 2022 @ 1919 |
--- |
cb |
only overflowing out the established channel. water is blue and clear with a 2pt vigorous boil |
| 23075 |
06 Aug 2022 @ 1116 |
--- |
cb |
no change |
| 23046 |
05 Aug 2022 @ 1018 |
--- |
cb |
pool is just at the scalloped edges. only overflowing into the muddy pool & the established channel. Meh blooping boil |
| 23010 |
03 Aug 2022 @ 1514 |
--- |
cb |
bit lower than yesterday morning. (before the rain) Overflow out the backside, the established channel & a bit into the muddy pool. Not overflowing toward Corporal. weaker roiling boil. water is clear and blue. |
| 22977 |
02 Aug 2022 @ 0946 |
--- |
cb |
Cistern Spring is higher again and overflowing in all directions. It has a vigorous 2 pt blooping boil. water is blue and clear |
| 22964 |
01 Aug 2022 @ 1315 |
--- |
cb |
Cistern Spring is overflowing out the established channel and has a vigorous 2 pt blooping boil. |
| 22946 |
30 Jul 2022 @ 1301 |
--- |
cb |
Cisterns pool is just lapping at the scalloped edges & is overflowing out the established channel area. This area still is a rainbow sherbet color. Backside and side toward Veteran is mostly dry. |
| 22859 |
26 Jul 2022 @ 1230 |
--- |
cb |
majority of runoff is out the established channel. toward Veteran and into the bobbysock trees is mostly dry. Typical boil, clear pool |
| 22795 |
22 Jul 2022 @ 1930 |
--- |
Dan A |
Back to overflowing in all directions |
| 22728 |
20 Jul 2022 @ 1303 |
--- |
cb |
pool had dropped a hair. Side toward Corporal, below the catch basin has dried up as have areas on the backside in the bobbysock trees. Water is right at the scalloped edges of the pool with the majority of runoff going out the established channel toward Echinus. water is clear with a typical boil. (not more, not less) |
| 22701 |
19 Jul 2022 @ 1157 |
--- |
cb |
high and overflowing. The bacterial mat area around and below the established runoff channel is a brilliant rainbow sherbet color again! |
| 22624 |
16 Jul 2022 @ 1218 |
--- |
cb |
no change. pool still high and overflowing X all. vigorous boil & clear |
| 22492 |
11 Jul 2022 @ 1617 |
--- |
cb |
Cistern Spring pool is high, clear, overflowing X all with a nice boil. |
| 22441 |
09 Jul 2022 @ 1914 |
--- |
cb |
pool is high, overflowing with a vigorous boil |
| 22313 |
04 Jul 2022 @ 1416 |
--- |
cb |
Repeat...pool is high, overflowing X all & vigorous boil |
| 22288 |
02 Jul 2022 @ 1316 |
--- |
cb |
pool is still very high and overflowing in all directions |
| 22247 |
30 Jun 2022 @ 1403 |
--- |
cb |
same...high overflowing X all with vigorous blooping boil |
| 22142 |
26 Jun 2022 @ 1852 |
--- |
cb |
Overflowing in all directions, clear, blue with a vigorous blooping (3"-4") boil |
| 22113 |
25 Jun 2022 @ 1103 |
--- |
cb |
CS is in copious overflow on all sides with a 6" vigorous blooping boil. |
| 22105 |
24 Jun 2022 @ 0804 |
--- |
bbev |
CS in copious overflow in all directions with strong, 6" blooping boil. |
| 22093 |
23 Jun 2022 @ 1827 |
--- |
cb |
overflowing in all directions. clear with moderate boil |
| 22097 |
23 Jun 2022 @ 0802 |
--- |
bbev |
CS appears to have recently began overflow to the north, towards Veteran, upper catch basins filling. Overflowing out back channel with trickle into muddy pool. |
| 22065 |
22 Jun 2022 @ 1329 |
--- |
cb |
CS water is just within sight down in the inner tube. ~6' from inner tube rim (at the base of the cave). Vigorous boil. refilling. ** @ 2025 2D5H Cistern Spring is ~1' below the inner tube rim. it has a vigorous boil and water is clear blue. |
| 21980 |
13 Jun 2022 @ 2000 |
--- |
Dan A |
3D8.5H PE cistern is overflowing in all directions with a nice big boil |
| 21947 |
12 Jun 2022 @ 0956 |
--- |
cb |
D22.5H. 48° raining steadily. Cistern Spring is empty. A father put his young son on his shoulders to see if there was any visable water. No visable water in the vent according to this smart young lad! |
| 21916 |
11 Jun 2022 @ 0849 |
--- |
cb |
water is ~5' below the inner tube rim, or just at the "cave" in the tube. color is blueish green. |
| 21905 |
10 Jun 2022 @ 1315 |
--- |
novakg |
Cistern was out of overflow, but had not dropped much |
| 21788 |
06 Jun 2022 @ 1130 |
--- |
cb |
moderate boil, water level just a hair below the scalloped overflow rim & only overflowing out the established channel. |
| 21635 |
01 Jun 2022 @ 1400 |
--- |
cb |
CS is only overflowing out the established channel toward Echinus. water is clear and has a moderate boil |
| 21540 |
27 May 2022 @ 1841 |
--- |
cb |
pool is high & overflowing into the muddy pool & out the established channel to the south and MAYBE some is dribbling out the backside toward Tantalus via wind pushed waves. Nothing out of the side toward Veteran or the boardwalk. It has a weak boil. water is clear & blue. |
| 21515 |
26 May 2022 @ 1413 |
--- |
cb |
3D5.5H PE. 1' BELOW the inner rim with a vigorous 2 point boil |
| 21476 |
25 May 2022 @ 0925 |
--- |
TSBryan |
empty |
| 21468 |
24 May 2022 @ 1904 |
--- |
cb |
Cistern Spring has drained. no water or steam observed |
| 21436 |
23 May 2022 @ 1636 |
--- |
cb |
8HR IE. down ~2' calm clear and blue |
| 21435 |
23 May 2022 @ 1247 |
--- |
cb |
4H into eruption, CS has dropped ~1' below overflow & is calm, clear and blue |
| 21395 |
20 May 2022 @ 2105 |
--- |
ypcaribou |
Per SB post: CS is only flowing out the back channel that I can tell. |
| 21348 |
17 May 2022 @ 0800 |
17 May 2022 @ 2000 |
ypcaribou |
Per SB entry: Cistern Spring overflowing out the established back channel only with a moderate boil. |
| 21326 |
16 May 2022 @ 1350 |
--- |
Tara |
Overflowing out the back channel, blooping boil in center of pool. |
| 21277 |
14 May 2022 @ 1200 |
--- |
cb |
Cistern Spring is only overflowing out the established channel on the south end of its pool. (toward Echinus) It has a weak boil. |
| 21244 |
11 May 2022 @ 0900 |
--- |
MAB |
overflowing every which way |
| 21213 |
07 May 2022 @ 1415 |
--- |
cb |
CS is filling. Water is ~4 - 5' below the rim of the inner tube. (right at the "cave" in the inner tube.) It has a substantial boil. It was difficult to see with my 1 good eye and through the snow squall & steam. I just waited for the wind direction to change and got a good view. |
| 21199 |
06 May 2022 @ 1430 |
--- |
MAB |
empty per maramom |
| 21175 |
05 May 2022 @ 1144 |
--- |
cb |
pool is empty, no visable water or steam |
| 21166 |
04 May 2022 @ 1419 |
--- |
bbev |
10hrs PSBE: pool is down 3', cloudy, no boil. |
| 21139 |
30 Apr 2022 @ 1430 |
--- |
bbev |
Cistern low, with only light runoff out back channel. All areas around spring are dry with water level ~1/2" below rim. Pool is clear with moderate boil. |
| 21068 |
24 Apr 2022 @ 1307 |
--- |
DanS |
Overflowing only through back channel |
| 21056 |
23 Apr 2022 @ 1304 |
--- |
DanS |
Below overflow for all but far runoff channel. |
| 21005 |
18 Apr 2022 @ 1820 |
--- |
MAB |
Clear blue w a 2 pt boil- not in overflow except the deep channel that points towards Echinus - zero on west terraces |
| 20949 |
06 Apr 2022 @ 1120 |
--- |
SteveO |
Overflowing and light boil in the center. |
| 20270 |
03 Nov 2021 @ 0915 |
--- |
cb |
In copious overflow in all directions! With a vigorous boil. muddy pool is very full and now has 2 outflow channels toward Echinus @ 1700 it is still the same, in crazy overflow! |
| 20267 |
03 Nov 2021 @ 0211 |
--- |
Tsunami |
*sighs* First off Park Rangers said I could be in the basin. Anyways, was noticeably down. |
| 20233 |
30 Oct 2021 @ 1200 |
--- |
bbev |
CS has been in heavy overflow for past two days, more water in every direction than l remember ever seeing, other than possibly during the last interval. There is a new,, bright green channel flowing into the "muddy pool" from Cistern. The muddy pool is no longer muddy, but clear and growing green algae on the bottom, and is establishing a new runoff, closer to the boardwalk and steerage. |
| 20144 |
27 Oct 2021 @ 1224 |
--- |
cb |
in overflow on all sides with a very, hardly noticeable, boil. boil is not audible either. Pool is a milky, opalescent blue color |
| 20122 |
25 Oct 2021 @ 1247 |
--- |
cb |
CISTERN SPRING @ 1247 has dropped 3' below overflow (water level is right at the intersection of the crossed logs. No boil, clear & blue. |
| 20072 |
21 Oct 2021 @ 1349 |
--- |
mwolf |
clear, blue, boilin, overflowin |
| 20060 |
19 Oct 2021 @ 1504 |
--- |
cb |
In copious overflow in all directions with a vigorous boil. Muddy pool is full & overflowing. |
| 20022 |
17 Oct 2021 @ 1635 |
--- |
MAB |
steamy but clear blue - overflowing every which way |
| 20003 |
16 Oct 2021 @ 1717 |
--- |
cb |
3D4.5H PE.. Cistern Spring is just barely in overflow out the established channel toward Echinus & off the backside into the bobbysock trees.
not yet overflowing toward Veteran. Pool is deep blue with a weak boil. |
| 19996 |
16 Oct 2021 @ 1136 |
--- |
cb |
CISTERN SPRING is ~1.5' below overflow with a nice boil and clear pool. |
| 19981 |
15 Oct 2021 @ 1250 |
--- |
cb |
CISTERN SPRING is down 2' below the inner tube rim. no boil. no steam. Water is a still, beautiful blue color. (still draining). |
| 19935 |
07 Oct 2021 @ 1750 |
--- |
cb |
CISTERN SPRING is still in overflow. |
| 19892 |
05 Oct 2021 @ 1832 |
--- |
cb |
7D5H.. CISTERN SPRING Is still in overflow with a VERY vigorous goil |
| 19882 |
04 Oct 2021 @ 0900 |
--- |
cb |
CISTERN SPRING is still in COPIOUS overflow in all directions. |
| 19829 |
01 Oct 2021 @ 1459 |
--- |
bbev |
3D,1hr PSBE: Overflowing in all directions with moderate boiling, clear blue pool. |
| 19818 |
30 Sep 2021 @ 1757 |
--- |
cb |
water level is 5' below the inner rim and rising with a fairly vigorous boil. color is milky blue. |
| 19805 |
30 Sep 2021 @ 1153 |
--- |
cb |
1D 22H PE. 1153 CISTERN SPRING is filling, water level way down in the vent and just barely visible at this time. ( below the 2 "holes" on the east side) Audible churning with a lot of steam. |
| 19780 |
29 Sep 2021 @ 0900 |
--- |
cb |
19.5 Hours PE. CISTERN SPRING is completely drained with no visible water & barely steaming. Vent & bottom was easily visible on this chilly morning. |
| 19749 |
26 Sep 2021 @ 1600 |
--- |
cb |
throughout the day Cistern was in copious overflow in all directions with a good, broad roiling boil. |
| 19578 |
15 Sep 2021 @ 0858 |
--- |
cb |
CISTERN SPRING water is ~ 1' below the rim of the inner tube and has a audible boil. To steamy to accurately view. |
| 19558 |
14 Sep 2021 @ 0941 |
--- |
cb |
3D3H .. Cistern spring is filling. No visable water yet but it has a VERY audible roiling boil with heavy steam. |
| 19527 |
13 Sep 2021 @ 1019 |
--- |
cb |
CISTERN SPRING @1019 has no visable water or audible sounds but has a fair amount of steam coming from deep down in its vent. |
| 18741 |
30 Jul 2021 @ 0555 |
--- |
ypcaribou |
Just below overflow. Right shoulder dry. Muddy Pool is more of a mud pit with a puddle of water in the center. |
| 18577 |
22 Jul 2021 @ 0930 |
--- |
Tara |
Milky blue, weak boil. Water level ~1cm below rim, overflow out back and west channels |
| 17614 |
09 Jun 2021 @ 1807 |
--- |
Craigmon99 |
Has become noticeably less opalescent and more clear in my 1.5 hours at Norris |
| 17601 |
09 Jun 2021 @ 0940 |
--- |
Tara |
Full, milky blue, light boil. |
| 17579 |
08 Jun 2021 @ 1009 |
--- |
cb |
pool is high with a weak boil and weak overflow to the south and a little over the backside. @ 1200 overflow has improved. A bit into the muddy pool, better flow out the established runoff channel to the south and catch basins are full and overflowing |
| 17537 |
07 Jun 2021 @ 1647 |
--- |
novakg |
Gorgeous off blue, gently boiling and in overflow in several places. Sorry, I didn't make careful notes. |
| 17513 |
06 Jun 2021 @ 0837 |
--- |
bbev |
5D, 20.5 hr PSBE; CS is high and overflowing out back channel, and has yet to reach overflow to the NW terraces or into muddy pool. Light, 3 point boil in opalescent light blue pool |
| 17478 |
05 Jun 2021 @ 1443 |
--- |
steve |
About a foot or slightly more below overflow and bubbling. Opalescent light blue color. |
| 17473 |
05 Jun 2021 @ 0924 |
--- |
cb |
4D22.5H PE. Water is up to the rim of the inner tube. it has a blopping boil. @1002 it's filling fast this morning! In a half hours time water has come up ~ 4" to past the rim |
| 17444 |
04 Jun 2021 @ 1620 |
--- |
cb |
4D 4.5H PE Cistern Spring water level has only come up a few inches since this morning observation. It is just covering (lapping over) the 2 holes inside the cave on the south side. Still has a vigorous boil. |
| 17445 |
04 Jun 2021 @ 0943 |
--- |
cb |
3D22H PE. Cistern spring is filling. water is at the 2 holes near the Cave about 6' from the inner rim.with a vigorous boil. |
| 17448 |
04 Jun 2021 @ 0804 |
--- |
bbev |
3D, 20hrs PSBE: water heard, and vigorous boiling seen, by standing on railing, deep in crater. Appears to be refilling, very steamy on warm morning. |
| 17400 |
03 Jun 2021 @ 0730 |
--- |
cb |
Cistern spring is lightly steaming. no visible or audible signs of water in the pool. |
| 17388 |
02 Jun 2021 @ 1420 |
--- |
Tara |
Empty and quiet, water not visible yet. |
| 17385 |
02 Jun 2021 @ 0955 |
--- |
Tara |
Completely dry, no water visible, light steam. |
| 17315 |
31 May 2021 @ 1342 |
--- |
molliepope |
Cistern has dropped about 2-3 inches. Small amount of bubbles reaching surface in center of pool. |
| 17192 |
26 May 2021 @ 0830 |
--- |
Suzanne |
Full and overflowing in all directions, with a good boil. |