| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 22399 |
08 Jul 2022 @ 1142 |
--- |
cb |
Pool down another 6", 2' below high water ring. It's milk chocolate color with a roil boil in the center and on the end by the bw |
| 22270 |
01 Jul 2022 @ 1337 |
--- |
MAB |
2 pt boil light brown in color - 1ft below cracked mud |
| 22245 |
30 Jun 2022 @ 1214 |
--- |
cb |
A tad more of a boil than last observation. 2 main roiling boils in front of the lg rock in the centerish area of the pool. roiling boil to 3". |
| 22164 |
27 Jun 2022 @ 1214 |
--- |
MAB |
steady boil mud puddle brown |
| 22121 |
25 Jun 2022 @ 1249 |
--- |
cb |
Pool is a latte light brown color, water is still high and it has 2 roiling boiling areas in the center of the pool. |
| 22079 |
23 Jun 2022 @ 1548 |
--- |
cb |
CHANGED again!! last time I looked at Congress it was turquoise blue! Now it is a .... ranger green color, kinda gray green & murky! Has a moderate boil & pool is down ~10" from last observation |
| 22075 |
15 Jun 2022 @ 1507 |
--- |
cb |
Change! The pool is a BEAUTIFUL turquoise blue color, clear with a 2 point bubbler (smaller than a boil) sending out small convection waves. water level is about 3' below the rim. |
| 21707 |
03 Jun 2022 @ 1200 |
--- |
MAB |
color changed from my last view - more of a greenish blue and not mud puddle brown - fairly quiet |
| 21482 |
25 May 2022 @ 0755 |
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TSBryan |
very low, slight bubbling, slate gray water |
| 21445 |
23 May 2022 @ 1250 |
--- |
MAB |
stronger boil in several spots than last week and light mud puddle color water looks lower - will compare photos and edit |
| 21243 |
11 May 2022 @ 1240 |
--- |
MAB |
watery brown - not much boil |
| 21028 |
18 Apr 2022 @ 1252 |
--- |
MAB |
low - sizzly bubbles - light brown |
| 20339 |
07 Nov 2021 @ 1630 |
--- |
mwolf |
clear, blue, high, calm, zero bubbles |
| 20193 |
29 Oct 2021 @ 1711 |
--- |
MAB |
CLEAR blue green- can even see into the vent - water level is above that bottom level of deeply cracked mud |
| 20074 |
21 Oct 2021 @ 1412 |
--- |
mwolf |
clear, green, calm, with occasional little bubbles |
| 20045 |
19 Oct 2021 @ 1244 |
--- |
cb |
weird. Pool is a clear, greenish color much like Colloidal Spring. Hardly any boil just a random golf ball sized bubble that slowly makes it way to the surface and pops. Water level is about 6" below high water/mud line. |
| 19923 |
06 Oct 2021 @ 1602 |
--- |
cb |
pool is greenish brown, low water level and 2 very small bubblers |
| 19832 |
01 Oct 2021 @ 1750 |
--- |
MAB |
Low but NO boil - pool was in shadow but looked greenish brown |
| 19231 |
01 Sep 2021 @ 1603 |
01 Sep 2021 @ 1613 |
MAB |
separate VRs of varying water level - one said it was rising the other dropping - gave it 10 min and didn't aee anything other than variation from the heavy brown boil |
| 19114 |
27 Aug 2021 @ 1844 |
--- |
MAB |
brown water w strong boil o west end |
| 18884 |
10 Aug 2021 @ 1010 |
--- |
cb |
pool is much higher than I last observed. I find this feature so hard to describe pool level. Pool is 1.5' below the edge of the cracked/caked muddy rim. |
| 18443 |
14 Jul 2021 @ 1900 |
--- |
MAB |
LOWer still - well below the cracked mud at the bottom of the pit - strong boil with more intense action on the west edge |
| 18274 |
05 Jul 2021 @ 1555 |
--- |
cb |
Pool is very low. 4-5' below the gray muddy high water mark. Below the gray water mark is 4" of a tan water mark. it has a vigorous 1' boil on the edge closest to the boardwalk. |
| 18089 |
25 Jun 2021 @ 1125 |
--- |
MAB |
Low w/ 4ft of cracked mud exposed - center boil plus very strong boil on West side |
| 17452 |
04 Jun 2021 @ 1834 |
--- |
MAB |
Water obviously dropped recently exposing 1.5 ft of cracked mud edges- dropped low enough to have a faint heart shape- color of wet cement brownish gray |
| 17282 |
30 May 2021 @ 1453 |
--- |
cb |
pool is higher than I've seen. Up to the smooth rim, boil on the north edge and in the center, color of milk chocolate |
| 17067 |
12 May 2021 @ 1817 |
--- |
MAB |
vigorous boil - mud puddle colored |
| 17033 |
09 May 2021 @ 1316 |
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bbev |
vigorous 3 point boil in low, muddy pool. |
| 16940 |
28 Apr 2021 @ 1840 |
--- |
MAB |
Low mud-colored water w a 3 point boil |
| 16352 |
06 Oct 2020 @ 1511 |
--- |
cb |
Water level has come up ~6" since my last observation. It is still the color of milk chocolate with dark chocolate swirls and has a VIGOROUS roiling boil erupting to 1'+ on the edge of the pool closest to the boardwalk. Diameter of the boil is ~1'. |
| 16212 |
20 Sep 2020 @ 1714 |
--- |
cb |
I find describing water levels in Congress challenging! The pool is LOW. 2' Below it's high water/mud mark from earlier this summer. It has a vigorous roiling boil on the west end of the pool. It's the color of milk chocolate with dark chocolate swirls on the south end of the pool and has a putrid odor! There are 2 interesting features in the Solfatara area about 30' to the west of Congress pool. 2 areas of boiling springs/liquidy mud pots, each about a foot in diameter and about a foot apart, that are pinkish/orange in color. |
| 15790 |
29 Aug 2020 @ 1020 |
--- |
cb |
Pool is up about a foot from last observation. |
| 15556 |
13 Aug 2020 @ 1230 |
--- |
cb |
Wowza! Congress pool's water level has really dropped! Not sure how to describe it other than it is lapping at the bottom of the clayish features on the SE edge of the pool. water level is below the muddy line on the western edge of the pool and has 4" of exposed yellowish color on the edges above the water line. Color is still milk chocolate with dark chocolate swirls on the east edge. vigorous boil on the west end. |
| 15455 |
07 Aug 2020 @ 1156 |
--- |
cb |
Congress pool is slightly higher than last observed. It is a milky hot chocolate color with some dark chocolate swirls. It has a vigorous boil on the end of the pool closest to the boardwalk along with other smaller boils scattered around the pool. |
| 15027 |
18 Jul 2020 @ 0832 |
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bbev |
Unchanged from yesterday with exception of the stick now floating in pool. |
| 15019 |
17 Jul 2020 @ 1138 |
--- |
bbev |
Pool is 6"lower than previously seen. Still has vigorous boil in muddy pool. |
| 14947 |
10 Jul 2020 @ 1330 |
--- |
cb |
Pool is very low & a murky milk chocolatey color with swirls of a dark chocolatey color toward the boardwalk. (best way i can describe it!) |
| 14874 |
04 Jul 2020 @ 1227 |
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bbev |
low, muddy, boiling pool. |
| 14598 |
11 Jun 2020 @ 1625 |
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cb |
Congress pool is the color of muddy hot chocolate and has 3 roiling boiling points closest to the boardwalk. Pool is low in the crater. |
| 13429 |
27 Aug 2019 @ 1324 |
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Betty |
Boiling from a low muddy pool |
| 13249 |
14 Aug 2019 @ 1522 |
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cb |
pool is up a bit since last observation. Up to the stick on the south edge. Color is muddy brown; think hot chocolate. boiling in 2 areas on the west edge. |
| 13047 |
05 Aug 2019 @ 0905 |
--- |
MAB |
low churning light water |
| 12894 |
31 Jul 2019 @ 1030 |
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cb |
vigorous boil. clay light brown in color. pool is higher than last observed by about 6" |
| 12841 |
28 Jul 2019 @ 0622 |
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ypcaribou |
Water low in pool. Gray and muddy. Roiling to about a foot periodically. |
| 12442 |
11 Jul 2019 @ 1636 |
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cb |
Congress pool water level is low and down 8' from the rockwork below the bw. color is a brownish green with 2 bubbling points. |
| 12036 |
29 Jun 2019 @ 1405 |
--- |
cb |
About 6" above the inner tube rim closest to the boardwalk. Blue green in color with 2 areas producing bubbles 1 - 2" in diameter |
| 11826 |
16 Jun 2019 @ 1026 |
--- |
cb |
water level is up 18" from the inner tube rim. ( side closest to the boardwalk) Color is turquoise blue and a bit cloudy. 2 areas with slight bubbles > center and southwest edge. |
| 11620 |
07 Jun 2019 @ 1032 |
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CrisG |
Water level about 5' below shoreline. Turquoise with a milky haze. very light bubbling. |
| 11158 |
03 May 2019 @ 1941 |
--- |
cb |
Low water level. 10 - 12' below overflow. Muddy water with 2 areas that have a significant boil |
| 11144 |
02 May 2019 @ 0952 |
--- |
MAB |
low brown fairly strong boil in 2 spots |
| 11018 |
20 Apr 2019 @ 1007 |
--- |
MAB |
Low, brown. |
| 10720 |
04 Nov 2018 @ 1026 |
--- |
MAB |
Dropped a few more inches since 10-28. Snow encircles the crater except for the east side towards Locomotive/Vermillion area. A very pretty last view. |
| 10675 |
28 Oct 2018 @ 1725 |
--- |
MAB |
Water level dropped along the shore line about one foot since last Monday. It is now in the steeper part of the crater and may be harder to track the receding, but I'll keep watching it. Still a pretty blue color. |
| 10626 |
19 Oct 2018 @ 1222 |
--- |
MAB |
Blue color, water level is 2 feet lower on the shoreline {below the white pointy rock} from a month ago. |
| 10617 |
17 Oct 2018 @ 1120 |
--- |
Kent |
Clear. Steam but calm. Two feet below last month. |
| 10510 |
30 Sep 2018 @ 1720 |
--- |
MAB |
Congress Pool is on the rise again! Comparative photos from 23rd and today show a rise of about a linear foot along the shoreline closest to the walk. Still a pretty blue color. Water level remained the same today from 0930-1720 |
| 10445 |
25 Sep 2018 @ 1151 |
--- |
bbev |
Down from last week, maybe 4.5 to 5' from " tiny tree" marker. Remains clear blue with some bubbles. |
| 10416 |
23 Sep 2018 @ 1800 |
--- |
MAB |
water level dropped around 3 inches since 22nd |
| 10350 |
22 Sep 2018 @ 1000 |
22 Sep 2018 @ 1600 |
MAB |
Comparison photos show Congress water level dropped .5 inch during that time. Still a pretty blue color. |
| 10289 |
18 Sep 2018 @ 1129 |
--- |
bbev |
Down some from last week, maybe 3.5 to 4' below overflow, 2' from "tiny tree". Still clear with sume bubbles. |
| 10275 |
17 Sep 2018 @ 1733 |
--- |
MAB |
Still a pretty blue color, water level dropped an inch since the 15th. |
| 10206 |
14 Sep 2018 @ 1600 |
--- |
MAB |
Still a beautiful blue, Congress is dropping. At 1600 water level was about 2 feet from the road/trail rockwork. At its highest level, water had reached those rocks. The poor little lodgepole sapling that was half submerged is out of the water, the lower half with dead needles. |
| 10166 |
12 Sep 2018 @ 1154 |
--- |
bbev |
Down maybe 2-3' below overflow, 14" from "tiny tree" next to boardwalk. Still blue and clear, small bubbles in center of pool. |
| 9936 |
29 Aug 2018 @ 1138 |
--- |
bbev |
Wateri2' below overflow. Water clear, blue, unchanged from yesterday |
| 9915 |
28 Aug 2018 @ 1127 |
--- |
bbev |
Nearly clear, blue, water level up from last week, "tiny tree" now half submerged. Some bubbling in center. |
| 9876 |
25 Aug 2018 @ 0708 |
--- |
bbev |
Water level maybe 24-30" from overflow, 1" up the rock wall at boardwalk. Mostly clear, blue, lightly bubbling. |
| 9862 |
24 Aug 2018 @ 0955 |
--- |
MAB |
Comparative photos = Fail. Water level either stabilized or dropped a tad.
Did not see a marked increased from 0955-1657 as I had in recent observations. |
| 9838 |
22 Aug 2018 @ 1015 |
--- |
MAB |
The poor little lodgepole sapling on the west edge is now under water. Water is now near the bottom of the old road rockwork. Pretty and blue. |
| 9808 |
21 Aug 2018 @ 1132 |
--- |
bbev |
Water level high, at the base of the "tiny tree" near the boardwalk. Clear beautiful, turquoise blue pool, slightly boiling. |
| 9756 |
17 Aug 2018 @ 1000 |
17 Aug 2018 @ 1615 |
MAB |
Congress rose 1 inch during these 6 hours. (Comparative rock photos) |
| 9730 |
15 Aug 2018 @ 0940 |
15 Aug 2018 @ 1740 |
MAB |
Based on the small lodgepole sapling 12" west of the pool and a nearly submerged rock, Congress rose 1.5 inches between 0940 and 1740. Color is blue, water level about a meter below overflow on the south rim. |
| 9720 |
14 Aug 2018 @ 1945 |
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bbev |
High, somewhat clear, blue, edge of pool is damp 4-6" above water level, light bubbling.
Large pool, maybe 500-600' to the NE(?) of Congress, on side of hill below old road, has began to overflow. It had been empty since June and noticed it near full last week. Porcelain springs putting out more water and basin appears to be getting wetter. |
| 9709 |
13 Aug 2018 @ 0930 |
--- |
Kent |
Pool full to top of old ring, about 18 inches below overflow. Very blue. |
| 9609 |
10 Aug 2018 @ 1000 |
10 Aug 2018 @ 1800 |
MAB |
Still opaque green with higher water level. Comparison photos show it rising about 1 inch during the day |
| 9584 |
09 Aug 2018 @ 1120 |
--- |
bbev |
Higher than 2 days ago |
| 9559 |
08 Aug 2018 @ 1823 |
--- |
MAB |
Water level higher than 2 days ago; per Byron it had risen more since this morning. Changed from blueish to an opaque sea green w/light bubbles from two places. |
| 9518 |
07 Aug 2018 @ 1134 |
--- |
bbev |
Water level is 2' above level observed last week. No longer boiling vigorously, only a few bubbles over closest vent. |
| 9501 |
06 Aug 2018 @ 1530 |
--- |
MAB |
Congress Pool has transformed from ugly dark chocolate low boil with water level up about two feet higher and a pretty blue! I will grill the staff and try to pin down when this occurred |
| 19284 |
15 Jul 2018 @ 1927 |
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research-mab |
7-15-2018 1927 BBEV CONGRESS See Note under Steamboat
1929 nice vertical minor from NV, 30+', concerted w SV 10-15'. Not much water down runoff . Deep rumble. Nothing really new. 3x1' area of gravel has been dredged exposing a portion of the bottom of trough at bridge. Cistern remains right at overflow, muddy pool SE of crater all but dried up. Nice vertical play from North vent as I was leaving. Emerald continues to boil, cloudy. Congress at same level as this morning. Porcelain at sunset still very active, but less than a week ago.
https://geysertimes.org/note.php?id=9040 |
| 19281 |
05 Jul 2018 @ 1201 |
--- |
research-mab |
7-5-2018 CONGRESS BBEV 1201 See Note under Steamboat
Porcelain Basin still very active, but appears drier. Congress pool down 4-6" from yesterday, still boiling vigorously. Emerald Springs and Monarch runoff appears to have increased. Monarch geyser crater has clearer water and much fuller. Corperal boiling, runoff wet. Cistern did not look any different, boiling steadily, just at overflow. Emerald Springs is still cloudy but with noticeably less boiling.
https://geysertimes.org/note.php?id=9039 |
| 3664 |
12 Sep 2016 @ 1050 |
--- |
Kent |
Pool clear, not muddy or turquoise and at about the same level as observed on July 5, 2016 |
| 3552 |
26 Aug 2016 @ 1215 |
--- |
Kent |
Water level near where it has been all summer. Water turquoise not gray or brown. |
| 3386 |
28 Jul 2016 @ 1515 |
--- |
MAB |
Water is CLEAR blue since my last wander by there (too much Vixen, it's been a while. I will find out from staff when it cleared up) |
| 1528 |
17 Apr 2015 @ 0910 |
--- |
Kent |
Pool a nice shade of turquoise. Level about the same as closing weekend 2014 |
| 5379 |
01 Feb 1995 @ 1800 |
--- |
research-mab |
02/01/1995 The water level in Congress is up about 3 feet since 1/19. Carnegie remains cold. |
| 4704 |
11 Jun 1990 @ 1800 |
--- |
research-mab |
6/11/1990 Congress pool is drained. First time I’ve seen that – small amt of water visible & audible deep in its throat. |
| 7640 |
26 Jun 1986 @ 1800 |
--- |
research-mab |
6-26-1986 Congress Pool – opaque dark gray muddy caldron. Water level down ~2m with 2 points of boil up to 1m high. Slight pyrite film on surface. T=199º |
| 5115 |
19 Aug 1977 @ 1800 |
--- |
research-mab |
08/19/1977 Congress is murky again instead of blue. |
| 5114 |
11 Aug 1977 @ 1800 |
--- |
research-mab |
08/11/1977 The water level in Congress Pool has risen some and is getting bluer again. |
| 4954 |
22 Sep 1976 @ 1800 |
--- |
research-mab |
09/22/1976 Congress Pool was erupting, could see the column of water over its edge. Estimate some eruptions at 6-7’. This is a great increase over the activity of the past week. |
| 5550 |
11 Jul 1976 @ 1800 |
--- |
research-mab |
07/11/1976 Congress Pool has begun to boil up to 18” high every few minutes. |
| 5686 |
13 Sep 1975 @ 1800 |
--- |
research-mab |
09/13/1975 Congress Pool is now about 4 ½ below high water mark and is erupting. Highest bursts last seen were about 3’. |
| 5698 |
06 Sep 1975 @ 1800 |
--- |
research-mab |
09/06/1975
Congress now down 3 ½ – 4’ |
| 5694 |
05 Sep 1975 @ 1800 |
--- |
research-mab |
09/05/1975
Congress Pool continuing to drop, boiling more vigorously. |
| 5665 |
31 Aug 1975 @ 1800 |
--- |
research-mab |
08/31/1975 Congress Pool – level in Congress has dropped to all-time low for the summer. Water level is approximately 3 ft below the high water mark. |
| 5658 |
26 Aug 1975 @ 1800 |
--- |
research-mab |
08/26/1975
Congress Pool – continuing to drop in water level - approximately 3’ down from overflow level. |
| 5656 |
24 Aug 1975 @ 1800 |
--- |
research-mab |
08/24/1975
Congress Pool – 178º Water level is down two feet. Eruptive activity noted last week has ceased; pool is turbid. |
| 5640 |
20 Aug 1975 @ 1800 |
--- |
research-mab |
08/20/1975 Congress Pool – vigorous bubbling at center of feature, water has turned turbid. Temp 178º {no time} |
| 5635 |
18 Aug 1975 @ 1800 |
--- |
research-mab |
08/18/1975
Congress Pool – water level has dropped approximately 1 foot. |
| 5624 |
26 Jul 1975 @ 1800 |
--- |
research-mab |
07/26/1975 Congress Pool is quite blue appears to be clearing. This feature is the bluest its been all summer. |