Last Known Eruption
226d 3h 35m ago

Latest Eruptions

Eruption DurationInterval
29 Nov 2023 @ 14162m 30s 16m
29 Nov 2023 @ 1400 ie4y 220d 4h 17m
24 Apr 2019 @ 1043 ie1d 23h 49m
22 Apr 2019 @ 1054 ie2y 308d 44m
18 Jun 2016 @ 1010 ie

Interval Statistics

Interval Count4
Min16m
Max4y 220d 4h 17m
Mean1y 315d 1h 16m
Median1y 155d 16m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
35421 21 Jun 2024 @ 1520 --- nails Yellow green with constant bubbling. There is a 3 foot piece of wood floating around.
35339 19 Jun 2024 @ 1048 --- Craigmon99 Boiling nicely on the right. Pool pulsing up and down. Spring is actually yellowish.
35340 19 Jun 2024 @ 1048 --- Craigmon99 Boiling nicely on the right. Pool pulsing up and down. Spring is actually yellowish.
35096 10 Jun 2024 @ 1303 --- SantaFe108 Also high, 2 inches from touching the gravel slope on the front side. Sinter plates are fully submerged. Lazy center boil in clear, yellow-green water.
34968 07 Jun 2024 @ 1318 --- CrisG pretty yellow green color. light continuous boil in right side of pool. water level about 2-3ft below full
34703 26 May 2024 @ 0830 --- ypcaribou Yellow lining pool. Clear turquoise water. Water has covered deposit chunks on rt side. Very full w/ gentle roiling in usual spot.
34254 19 Apr 2024 @ 1517 --- MAB fairly clear water covering the western sinter rock chunks - rolling boil
33934 26 Jan 2024 @ 1420 --- JR Low, brown, yellow around edges, strong splashing.
33747 04 Jan 2024 @ 1539 --- Graham High water with boiling splashing on it.
29319 31 Oct 2023 @ 1624 --- MAB mud puddle color bursting over vent - pretty low - most west rocks exposed
29025 22 Oct 2023 @ 0907 --- SantaFe108 ~5 inches below the NW rocks, peanut butter brown colored murky water with splashy boil on the right side.
28976 21 Oct 2023 @ 1535 --- JR 1-2 feet below rim. Brown, opaque, strong roil on right side.
28921 20 Oct 2023 @ 1555 --- MAB below the west rocks - steady boil light brown water
28891 19 Oct 2023 @ 1829 --- ypcaribou cloudy gray brown water lapping at bottom of dep chunks on right side to 6" below that. cobstant splashing to a ft in usual spot.
28879 19 Oct 2023 @ 1201 --- DanS Medium water level, vigorous boiling
28768 14 Oct 2023 @ 1324 --- SantaFe108 Full covering sinter plates towards the boardwalk. Center boil.
28781 14 Oct 2023 @ 1235 --- MAB clear w steady boil - water level is above the NW rocks
28635 05 Oct 2023 @ 1214 --- cb pool is clear, VERY full, yellowish green color with roiling boil over the vent.
28576 30 Sep 2023 @ 0816 --- ypcaribou Almost looks like a yellow funnel again. Water high - to bottom of deposit pieces at right edge. Clear water with yellow lining pool.
28546 29 Sep 2023 @ 1218 --- User34 ~2ft below overflow, waving, and bubbling
28011 04 Sep 2023 @ 1641 --- cb pool is very high. covering the rocks closest to the bw. clear greenish yellow eith a blooping boil
27596 14 Aug 2023 @ 1609 --- cb pool is high, roiling boil to ~ 6', greenish in color
27289 28 Jul 2023 @ 2023 --- SantaFe108 Water level is just at the closest sinter plate leaning to the boardwalk with waves lapping over it. Center-right boiling.
27176 23 Jul 2023 @ 1430 --- mhreed Light boil. Cloudy green.
26968 09 Jul 2023 @ 1542 --- cb water level very high, covering the rocks on the west edge of the pool. Strong blooping boil. water clear and greenish over the vent
26949 08 Jul 2023 @ 1941 --- nails Steady boil in center. Filled with clear water - slightly green gray color in the evening light.
26831 04 Jul 2023 @ 0916 --- MAB water level well above the SW rocks - steady center boil
26408 17 Jun 2023 @ 1513 --- SantaFe108 ~5 inches below topmost sinter plate leaning towards the boardwalk. Constant splashy boil.
26312 14 Jun 2023 @ 1202 --- CrisG yellow green water nearly to the top of the white bath ring. nice right sided boiling.
25963 02 Jun 2023 @ 1021 --- Tara water level ~3' down from top of shoulder, partially covering rocks on front side. water murky yellow brown, lazy bursting.
25864 28 May 2023 @ 2000 --- SantaFe108 Murky green water with boiling/splashing in center. Water level is ¾ of the way covering the bottom two sinter plates closest to the boardwalk.
25658 21 May 2023 @ 1422 --- SantaFe108 Murky green water and splashing like last report. 1 foot below covering the loose sinter plates towards the boardwalk.
25467 15 May 2023 @ 1925 --- ypcaribou Clear but dark gray water. Brown scum at edges. Splashing in usual spot on right to a foot or so every couple seconds.
24578 30 Oct 2022 @ 1716 --- ypcaribou Clear, gray, depressing. Full to within 6" of covering the geyserite chunks inside the edge closest to the walk. Burbling in right center.
24407 15 Oct 2022 @ 0941 --- MAB slightly cloudy greenish water in a steady boil - pool level is still at half the rock pile
24253 05 Oct 2022 @ 1243 --- cb pool is high, only ~6" of the rock pile are exposed on edge closest to the bw. Vigorous 8" blooping boil
29109 27 Sep 2022 @ 1200 --- research-mab 9/27/2022 - no time noted - Yellow Funnel looked very dark brown and bubbling
24075 24 Sep 2022 @ 1552 --- CrisG nice chocolate pool with water well into the southern rocks. moderate boil to eastern side of pool.
24076 24 Sep 2022 @ 1552 --- CrisG nice chocolate pool with water well into the southern rocks. moderate boil to eastern side of pool.
23964 20 Sep 2022 @ 1703 --- ypcaribou Clearish with dark brown crater. Level to about 2ft below rim. Brown, foamy scum floating at right edge. Was just vigorously boiling then started bursts of splashing at 1705. Splashes creating a 2ft diameter ring in water.
23636 07 Sep 2022 @ 1140 --- MAB same water level maybe a smidge into the south rocks but crazy boils and bursts 1-4ft
23502 31 Aug 2022 @ 1132 --- cb Pool is high, light chocolate brown with a vigorously blooping boil to 1'.
23325 21 Aug 2022 @ 1041 --- ypcaribou Dirty bathwater gray and quite full. Constant boiling in vent and much turbulence. Water maybe 1-2 ft down from ground level.
23262 18 Aug 2022 @ 0935 --- MAB very full {comparatively}-1-2 ft below overflow depending on rim - steady very light boil
29091 14 Aug 2022 @ 1200 --- research-mab 8/14/2022 - no time noted - -Yellow Funnel Spring is muddy & very full → covering the rocks so it kinda looks like a bathtub
23079 06 Aug 2022 @ 1136 --- cb Also has water again! ~2' of coffee colored (no creamer!) water down in the vent that is bursting 1-2' up onto the vent rim. VERY active and no longer just a steam vent!
22986 02 Aug 2022 @ 1043 --- cb No visable water & no gurgling sounds. just steam and a low level grumble. Looks more like a weak steam vent! Most of the vent is dry with a small damp area where the steam is coming up.
22950 31 Jul 2022 @ 1123 --- cb No visable water in it at all. a little rumblings and steam. thats it!
22897 27 Jul 2022 @ 1603 --- MAB Empty! Only tips of splashes visible from deep within vent
22741 20 Jul 2022 @ 1855 20 Jul 2022 @ 1900 nails Water is muddy brown, vigorous bursting with some splashes 3 feet above water level. Water level is below the rocks in the crater.
29084 16 Jul 2022 @ 1200 --- research-mab no time noted - 7/16 Yellow Funnel Spring very brown and violently boiling
22321 04 Jul 2022 @ 1449 --- cb pool has dropped another 6" from last observation. rocks on the edge toward the bw are high and dry. Color looks like watery coffee. Vigorous 10" blooping boil
22210 29 Jun 2022 @ 1410 --- cb pool has dropped ~4", is now a muddy coffee color brown with a vigorously blooping boil
22119 25 Jun 2022 @ 1150 --- cb Water level has dropped ~2". water is a cloudy muddy latte color with a vigorously roiling 4" boil. there is a 2' long stick in the pool
22089 23 Jun 2022 @ 1800 --- cb fairly clear water, yellowish tint, roiling boil, water is just barely covering the rocks in the side of the pool closest to the boardwalk
21610 31 May 2022 @ 1509 --- cb High water level. 1.5' - 2' below overflow level. water is clear, yellowish tint with a vigorous boil.
21330 16 May 2022 @ 1118 --- Tara Water level about 2" below bathtub ring, maybe 18" below edge of basin. Vigorous bubbling over vent.
21176 05 May 2022 @ 1311 --- cb Water is at high water mark along the edge! highest water level I've observed. water is clear with a yellowy tint. roiling boil over the vent.
21073 24 Apr 2022 @ 1608 --- DanS Water high boiling gently, murky green yellow color.
21015 18 Apr 2022 @ 1702 --- MAB Clear - water level above those large chunks on the W side - prob ~1ft deep on N end & 2.5ft over the vent
20301 04 Nov 2021 @ 1205 --- MAB still low and splashy- maybe 1/8 full - cloudy green water- on my way back by @ 1241 saw a series of Big Bursts maybe 4-5 ft
20250 31 Oct 2021 @ 1011 --- MAB 2ft clear water bursts from low in the Crater- est about 10% full
20051 19 Oct 2021 @ 1340 --- cb no change, water level same, at the base of the root. bursts to 2' at times.
19833 01 Oct 2021 @ 1448 --- MAB vigorous splashing w fairly clear water from deep in vent
19811 30 Sep 2021 @ 1247 --- cb 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. Yellow Funnel Spring pool level is just barely visible down in the vent h is splashing 2' high or just below the root on the south end of the pool
19699 23 Sep 2021 @ 1039 --- cb Yellow Funnel has visable water down in the vent and is splashing up to the rim of the vent with big bubbly bursts. 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.
19608 16 Sep 2021 @ 1041 --- cb pool water level is not visible but the tips of splashes are visible. Lots of churning/ gurgling sounds. 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.
19626 16 Sep 2021 @ 0919 --- MAB splashy sprays from left vent otherwise basically empty - no water visible
19506 12 Sep 2021 @ 0845 --- mhreed Bursting low in its crater. Base water level just out of sight.
19373 08 Sep 2021 @ 1145 --- Tara Water level too low to be visible, bursting 2-4'
19039 24 Aug 2021 @ 1337 --- Graham Constant boil and bursting 2 to 4 feet.
18998 22 Aug 2021 @ 1711 --- MAB maybe 8in clear water in the vent area - small bursts
18782 01 Aug 2021 @ 1023 --- cb pool is much higher, up to the rock pile with strong 3' bursts. light yellowing color. 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.
18507 18 Jul 2021 @ 1059 --- cb Blue mud steam vent is chugging but no visable water. Yellow Funnel Spring HAS WATER BACK in its vent! Low in the vent and pool is just visible but the spray is coming up 1' above the pool with a vigorous boil!
18369 11 Jul 2021 @ 1453 --- cb BLUE MUD STEAM VENT has no visable water but I can hear splashing deep in the vent. YELLOW FUNNEL SPRING has the tips of splashing visable. no pool of water visable.
18328 09 Jul 2021 @ 1315 --- MAB still totally empty but throwing visible jets of water 1-3ft from within the vent
18281 05 Jul 2021 @ 1502 --- cb Blue Mud Steam Vent still has no visable spray of water but I can hear water sloshing around deep in the vent. Yellow Funnel Spring water level is still not visible BUT I can hear it gurgling and can see the tips of splashes deep in the vent.
18183 29 Jun 2021 @ 1335 --- cb Blur mud steam vent still has no visable water but can hear splashing down deep. YFS no water visable or audible, just steam with a occational hissing sound.
18155 28 Jun 2021 @ 1703 --- MAB A Fumarole - no sight or sound of water
17726 12 Jun 2021 @ 1607 --- MAB No water - zip zero nada - a little moist around the vent
17573 08 Jun 2021 @ 1119 --- cb Blue mud spring vent water is churning deep DEEP Down in the vent. water not visable. side vents are inactive and dry. Yellow Funnel Spring HAS NO POOL OF WATER! Splashing deep down in the vent and I can only see the tips is the VIGOROUS larger water splashes
17276 30 May 2021 @ 1605 --- cb 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 Yellow Funnel Spring is WAY low! water is down in the vent, 2' from the smooth rim to the south and has a VIGOROUS boil to 1 - 2' roiling boil
16896 20 Apr 2021 @ 1605 --- MAB Clear water, moderate boil w a few larger splurts - water level is above the broken rim pieces- about 1/5th full. Nice frosty trees
16823 24 Jan 2021 @ 1408 --- markwolf maybe slightly increased boil turbulence. blue mud steam vent is quite low. mud is tan
29170 14 Oct 2020 @ 1200 --- research-mab 10/14/2020 - no time noted - very high water levels throughout the Back Basin – I’m assuming at least partly due to recent snowfall Blue Mud Steam Vent – Yellow Funnel Spring – Crater Spring
16396 10 Oct 2020 @ 1028 --- cb 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. Yellow Funnel Spring is high (water is covering the rocks on the west end of the pool). it has a vigorous boil and water is clear and yellowish green
16343 06 Oct 2020 @ 1232 --- cb Yellow Funnel Spring pool is high, clear, greenish/yellow with a roiling boil that breaks the surface by a few inches. Water level is just at the top of the big rocks on the West edge of the pool. 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.
16270 26 Sep 2020 @ 1615 --- cb Pool is VERY high. Up past the boulders on the westish end of the pool. water is clear, greenish in color with a very light boil. 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.
16049 06 Sep 2020 @ 0728 08 Sep 2020 @ 2128 underarockphoto Clear, boiling, 2 feet below overflow.
15894 29 Aug 2020 @ 1220 --- cb Water level is down about 6" from last observation. At about 1/2 of the sandy beach on the northwest end of the pool is covered with water. Pool is clear with a ~1' roiling boil. 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.
15697 23 Aug 2020 @ 0716 --- ypcaribou Clear, somewhat full to maybe a foot from rim? Roiling but not splashing
15549 13 Aug 2020 @ 1037 --- cb adding this here as it doesn't have a spot: Blue Mud Steam Vent pool is VERY high and vigorously boiling. about 3" blow the nw side vent. A few vigorous boils and muddy water would slosh into the side vent. Both side vents are high and bubbling. Yellow Funnel Spring pool is high also. It's covering the sandy beach on the west edge. Pool is a slight yellowish green color and is fairly clear with a average boil.
14950 10 Jul 2020 @ 1455 --- cb erupting about 1.5' in height. water is clear, pool is 3" above the sandy area.
19301 12 Jun 2020 @ 0913 --- research-mab 12 Jun 2020 @ 0913 YELLOW FUNNEL YPCARIB0U See Note under Steamboat https://geysertimes.org/note.php?id=14608
14504 01 Jun 2020 @ 1813 --- ypcaribou Clear, grayish green water splashing about a foot from just right of middle. Water level low but covers width of crater.
14002 03 Nov 2019 @ 1113 --- MAB one- third full of clear water - strong boil above vent
13928 12 Oct 2019 @ 1242 --- cb Vigorous boil to 1'. water is up to the inner tube rim, clear and greenish in color
13891 05 Oct 2019 @ 1215 --- cb water level is high. up to the rocks on the west end. color is greenish yellow and clear with a VIGOROUS boil to 1'.
13738 07 Sep 2019 @ 1443 --- Polly Water level about 15” down from top of inner tube. Water is a little bit sandy/dirty and churning.
13572 05 Sep 2019 @ 0938 --- cb water visible 1' down inner tube. vigorous boil and splashes
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