| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 19660 |
19 Sep 2021 @ 1548 |
19 Sep 2021 @ 1630 |
cb |
Crater Spring north pool is in a constant vigorous roiling boil to ~2' mostly against the south back edge. Main pool has 5 - 6 apple sized boils that break the surface to ~2". Alcove pool rises about 4" and falls with out any splashes. Both pool levels stayed constant during my observation. North pool seemed to get a little bit less active for a few brief minutes and then resume its consistent boil. |
| 19454 |
10 Sep 2021 @ 1610 |
10 Sep 2021 @ 1620 |
User34 |
No majors observed from Steamboat lower deck |
| 19459 |
10 Sep 2021 @ 1526 |
10 Sep 2021 @ 1548 |
novakg |
North vent boil only. Temperature reading around 150 to 152 F. 1548 left for Vixen. |
| 19380 |
07 Sep 2021 @ 1010 |
07 Sep 2021 @ 1130 |
CrisG |
Vigerous boiling from the North vent to 1-1.5 ft. |
| 19356 |
06 Sep 2021 @ 1100 |
06 Sep 2021 @ 1900 |
Art |
Crater Springs is vigorously boiling from the North Pool vent and is not having any minor or major eruptions. |
| 19324 |
05 Sep 2021 @ 1030 |
05 Sep 2021 @ 1500 |
Art |
Crater Springs is vigorously boiling from the North Pool vent and is not having any minor or major eruptions. |
| 19309 |
04 Sep 2021 @ 1830 |
04 Sep 2021 @ 1900 |
Art |
Crater spring is back to having minor eruptions this evening |
| 19254 |
03 Sep 2021 @ 1217 |
03 Sep 2021 @ 1230 |
Art |
Crater spring appears to be having major eruptions about every 7 mins. Behavior is similar to major eruptions previously observed. |
| 19222 |
01 Sep 2021 @ 1624 |
01 Sep 2021 @ 1721 |
Art |
Majors are back today
Intervals - 6m 30s - 7m 11s
Duration - 50s - 1m 28s
Some huge North pool bursts 12-15’
Alcove bursts sometimes splashing into main pool.
Water levels low enough between eruptions to separate north pool and main pool, water rising 12” during eruption making one pool. |
| 19176 |
31 Aug 2021 @ 1550 |
31 Aug 2021 @ 1620 |
Art |
Crater Springs is having shorter height eruptions to about 2-3’. North pool continuously boiling then builds to a vigorous boiling eruption. Water level only rising about 6” during eruption then settles down to nearly flush with main pool between. Interval between eruptions of around 4 minutes. Eruptions lasting 1m 5s - 1m 30s. Only two to three small splashes from Alcove during eruptions to 6-12”.
Main pool barely has 2-3 apple size bubbles. |
| 19178 |
31 Aug 2021 @ 1314 |
31 Aug 2021 @ 1356 |
ge |
1-2 foot boils, but no eruption |
| 19094 |
26 Aug 2021 @ 1558 |
26 Aug 2021 @ 1653 |
Art |
CS water level low separating main pool from north pool. Main pool has four apple size boils. North pool gently boiling and below vent rim. Alcove audibly boiling/gurgling between eruptions.
Water levels in north pool rising near start, gradually overflowing from north pool into main pool. Wide bursting eruption from north, about 6-10’, splashing outside of pool sometimes reaching area of old path to the north.
Alcove erupting about 4’ and about flush with the ground. Largest bursts near end of eruption after north vent starts settling down.
Main Pool rising about 18” during eruption.
Eruptions about 1m 15s-1m 30s in duration and about every 7 minutes. |
| 19085 |
25 Aug 2021 @ 1020 |
25 Aug 2021 @ 1300 |
cb |
major eruptions continue ~every 7 minutes till I left at 1300 |
| 18920 |
13 Aug 2021 @ 1610 |
13 Aug 2021 @ 1637 |
Art |
CS exactly as per cb’s description on 8-11-2021. Unchanged.
1617-1623 - “Stronger” boil with increased with more overflow out the south towards main pool. Boil to 2’. Alcove sloshing and splashing to 1’.
1627-1630- “Stronger” boil with splashing up to 3’ |
| 18893 |
11 Aug 2021 @ 1030 |
--- |
cb |
CS is no longer erupting. It's water level is VERY LOW. The North Pool is in continuous roiling boil to 1', Main pool has 4 small apple sized boiling points along the edge of the pool toward Echinus and is VERY low. exposed rocks at the bottom. The Alcove is erupting to ~5"-10". big difference from 2 weeks ago! |
| 18811 |
30 Jul 2021 @ 0905 |
30 Jul 2021 @ 1800 |
Micah Kipple |
It appeared to us that the eruptions generally got bigger throughout the day. Several of the last eruptions we saw sent water droplets to at least 10 feet and nearly hit the bumper logs but never crossed them. |
| 18752 |
30 Jul 2021 @ 1000 |
--- |
Micah Kipple |
Please Note: durations are first splash to last splash out of the alcove. |
| 18675 |
26 Jul 2021 @ 0939 |
26 Jul 2021 @ 1516 |
cb |
Pool is still a murky gray color.. The longer intervals from 0939 on represent the duration from start to when the Alcove vent stops spitting water and grumbling. The shorter ~2m intervals are when the north vent slows down and begins to drop but the Alcove continued. I wasn't including the Alcove ending spits in the 2m durations so I am noting the difference here. |
| 18662 |
25 Jul 2021 @ 0937 |
--- |
cb |
HOLY S**T! Crater Spring's pool has dropped even lower! The pool is so low that the active vent on the north end of the pool is almost completely.... HOLY... IT'S ERUPTING! OUT OF 2 VENTS! The North Vent and the Alcove. To heights of 6'-8' and the color of the water is dark gray. |
| 18579 |
22 Jul 2021 @ 1036 |
--- |
Tara |
Water level ~4 ft down with boiling and splashing that reached 1-2 ft at times in back vent. Murky yellow-brown. Steam vent with yellow deposit on north side of crater. |
| 18503 |
18 Jul 2021 @ 1027 |
--- |
cb |
Lowest pool I've ever seen! Down 4' from high water mark. 1' below the Alcove! Vigorous 1' boil on north vent. If the pool drops much lower the north vent will be separated from the rest of the pool! |
| 18372 |
11 Jul 2021 @ 1422 |
--- |
cb |
much the same as last observation, pool is low, except the alcove has some bubbles |
| 18284 |
05 Jul 2021 @ 1431 |
--- |
cb |
Pool is VERY low. Rocks in the pool closest to the boardwalk are exposed. Vigorous boil on north the north & east edges of the pool. Water is clear. Pool appears ~3" lower than last observed on 6/29/21. |
| 18187 |
29 Jun 2021 @ 1259 |
--- |
cb |
pool is VERY low. rock out cropping closest to the boardwalk is exposed and dry. Vigorous 1' boil on the north edge. Pool has dropped a good 6-8" since last observation on ⁶/26. |
| 17577 |
08 Jun 2021 @ 1019 |
--- |
cb |
pool is VERY VERY LOW! Pool is a yellowy green color with what looks like sulfur dust in the shallow areas! Rocks that are usually water covered to the west are exposed and dry. Vigorous boil on north edge and on the south edge. alcove has a bit of water. |
| 17280 |
30 May 2021 @ 1536 |
--- |
cb |
pool is still low. The rock outcroppings on the north east and east edge of the pool are exposed and dry. Down 1.5' from 5/6/21. vigorous 4pt boil on north edge east. Alcove has water |
| 17157 |
21 May 2021 @ 0824 |
--- |
cb |
pool is LOW! Down 1.5' since last observation. The alcove barely has a puddle of water in it with a boil under the alcoves rock bridge. pool is clear with boiling points on the north and east rim |
| 17029 |
09 May 2021 @ 1158 |
--- |
cb |
pool is down about 4". Still a vigorous boil on the north & SE edges. convection waves in the alcove. The water is clear |
| 16996 |
06 May 2021 @ 1954 |
--- |
cb |
Pool is very high and has several boilingpoints. especially on the north edge |
| 16392 |
10 Oct 2020 @ 1007 |
--- |
cb |
water level is higher than last observed. it is covering the "nose" on the south end of the pool. bubbles on the south and north edge of the pool but a bit hard to see through the steam. Water is clear with a tiny of green. |
| 16339 |
06 Oct 2020 @ 1206 |
--- |
cb |
Crater Spring pool is high and just covering the nose on the south edge of the pool with a moderate boil in this area. Also, moderate boil on the north edge that's blooping to 2". pool is clear and greenish. No boil in the Alcove area. |
| 16274 |
26 Sep 2020 @ 1640 |
--- |
cb |
water level is high! The peninsula on the east side of the pool is covered in 3" of water. weak boil on both the north and east sides of the pool. nothing in the alcove. |
| 16047 |
06 Sep 2020 @ 0726 |
08 Sep 2020 @ 2126 |
underarockphoto |
Crater remained clear with a light boil at a static water level 1ft below the rim of the crater during all three days of observation. |
| 15892 |
29 Aug 2020 @ 1230 |
--- |
cb |
The pool is high and has more areas that have boiling points. North end, East side & South end of the pool have more vigorous boiling than I observed on 8/26/20. Pool is clear. No activity in the alcove area on the west end. |
| 15546 |
13 Aug 2020 @ 1012 |
--- |
cb |
pool has dropped ~4" since last observed. Moderate boil in the north edge and bubbles breaking the surface on the east edge. pool is clear. |
| 14952 |
10 Jul 2020 @ 1530 |
--- |
cb |
high water in the pool. only 2 weak boiling points on north edge of the pool. |
| 14612 |
12 Jun 2020 @ 0907 |
--- |
ypcaribou |
Clear, spa blue. Full. Small piece of rock that is cracked off of the large deposit that is separated on left is just visible above water |
| 14524 |
03 Jun 2020 @ 1300 |
--- |
cb |
The pool is also VERY high! Water level has extended into the rocky area beyond the smooth crater rimmed rocks. Soft ball sized bubbles are just breaking the surface in 3 points on the north edge of the pool. No other activity in the pool. Water is clear. |
| 14500 |
01 Jun 2020 @ 1756 |
--- |
ypcaribou |
Full almost to an overflow. Clear, spa blue. |
| 13932 |
13 Oct 2019 @ 1540 |
--- |
cb |
pool is clear, high with a light boil on the east and north sides |
| 13925 |
12 Oct 2019 @ 1215 |
--- |
cb |
water level is high still. ver gentle boil on the north and east sides of the pool. |
| 13888 |
05 Oct 2019 @ 1200 |
--- |
cb |
pool is high with a boil on the N end and E side. |
| 13800 |
25 Sep 2019 @ 0750 |
--- |
DanS |
Water level up with multipoint vigorous boils. |
| 13754 |
19 Sep 2019 @ 1200 |
--- |
cb |
The pool water level is VERY high. on the south end, water is up to the gravel. East end water level covers "the beach" and the nose is submerged 4" below the water. Occational bubble by the nose. slight bubbling on the North end. No bubbling in the alcove. |
| 13391 |
25 Aug 2019 @ 0739 |
--- |
ypcaribou |
Full with water to left of left broken edge. Clear, not splashing, yellow on bottom of crater. |
| 13301 |
17 Aug 2019 @ 1709 |
--- |
cb |
Crater Spring pool is up another 4" since last observation. Water is up to and covers the bottom part of the "nose" on the east edge. |
| 13256 |
14 Aug 2019 @ 1629 |
--- |
cb |
pool is back up to typical water level. (is there such a thing at Norris?) Water is just under the "nose" on the East edge by about 2.5". It is clear with boiling on the North edge, some by the nose. nothing in the alcove. |
| 13123 |
09 Aug 2019 @ 0810 |
--- |
cb |
water level has come up quite a bit. Rocks in the pool on the south end are almost covered. 10 - 12" below the peninsula rock on the east rim. Vigorous boil on the north edge. Alcove has 2" of water covering the shelves with occasional 2" bubble breaking the surface. color is emerald green and clear. |
| 13087 |
07 Aug 2019 @ 0747 |
--- |
bbev |
Boiling vigorously in far side of pool. 2-3' below edge of pool. Root pool low and boiling. |
| 13077 |
06 Aug 2019 @ 1735 |
--- |
cb |
Very VERY low. 3 - 4' below the hight water mark and a vigorous boil to 3' from the north end of the pool. No water observed in the alcove (behind the broken crater rim) until walking back from Tantalus. Water was filling the alcove and erupting to 1'. |
| 13015 |
04 Aug 2019 @ 0741 |
--- |
cb |
pool is crazy low! down 3' from high water mark and a foot below the peninsula rock. Rocks in the pool to the NE & S ends of the pool are completely exposed. Vigorous boil to 2' on north end and the alcove has little water but has a 6" boil coming up from behind the broken chunks of rim. |
| 12993 |
03 Aug 2019 @ 0821 |
--- |
cb |
Water level is down 6" from the tip of the peninsula on the west end |
| 12963 |
02 Aug 2019 @ 1745 |
--- |
bbev |
Pool has dropped another 2-3" from this morning. Still boiling and clear. |
| 12976 |
02 Aug 2019 @ 0931 |
--- |
MAB |
per cb not as full as yesterday. 3 areas of boil. At this time Root Pool was 2 connected pools with light boil in the northern one |
| 12951 |
02 Aug 2019 @ 0806 |
--- |
bbev |
Still clear and boiling in several areas. Water level has dropped to expose back shelf, maybe 4" lower than yesterday evening. |
| 12930 |
01 Aug 2019 @ 1748 |
--- |
bbev |
Vigorously boiling in east, north, and west areas of spring |
| 12922 |
01 Aug 2019 @ 1020 |
--- |
cb |
pool has dropped 4". Vigorously boiling in the alcove, the N edge and the E peninsule areas. |
| 12887 |
31 Jul 2019 @ 0834 |
--- |
cb |
pool is high with boiling on the south end by the pointed rock reaching 6". Boiling on the north end of the pool (toward SB runoff channel) is vigorous and has a 4 point boil. Small bubbles in the pool, alcove behind the broken off crater rim. |
| 12846 |
28 Jul 2019 @ 0733 |
--- |
ypcaribou |
Full, no splashing, has a yellow tinge below water. |
| 12809 |
26 Jul 2019 @ 1015 |
--- |
cb |
pool is high and covers the point on the south end |
| 12097 |
03 Jul 2019 @ 0950 |
--- |
cb |
water level in the pool has risen 3". |
| 11856 |
17 Jun 2019 @ 0900 |
--- |
udo |
Clear. Water level is above rim within the crater, higher than I've seen before. |
| 11820 |
16 Jun 2019 @ 0830 |
--- |
cb |
water level remains high, just reaching the sandy berms on the north and south rims. Some areas boiling on the north end. |
| 11354 |
26 May 2019 @ 0647 |
--- |
ypcaribou |
Quite full, just below top of scalloped rim on right side, water surrounding rock on left from collapsed edge |
| 11310 |
22 May 2019 @ 1614 |
--- |
cb |
Pool is VERY high. Water is covering the ledge on the S end of the pool by 2" of water. |
| 11235 |
13 May 2019 @ 1106 |
--- |
MAB |
Higher water level than May 02 - about 6 inches up the west rock with the cracks. Good bubbling from east and north vents. |
| 11145 |
02 May 2019 @ 1034 |
--- |
MAB |
almost full - water at bottom of west rock. south rock submerged |
| 11056 |
23 Apr 2019 @ 1045 |
--- |
MAB |
water level up 8 in since 20th |
| 11021 |
20 Apr 2019 @ 1036 |
--- |
MAB |
Low water, vigorous splashing from the north vent. |
| 9971 |
31 Aug 2018 @ 1019 |
--- |
MAB |
Water level is up, now covering the south-center rock. Water also visible in west vent area below the collapsed crater shelf. |
| 9834 |
22 Aug 2018 @ 1839 |
--- |
cb |
water level is almost covering the center rocks and is high and boiling in the side feature. |
| 9619 |
10 Aug 2018 @ 1328 |
--- |
MAB |
Low clear water, up a few inches since last sighting. Vigorous splashes from north vent. |
| 9384 |
01 Aug 2018 @ 0943 |
--- |
MAB |
More water than my last visit - east side maybe 8-10" at its deepest; no water over the south-center rock; no water on west side. North vent splashing 1-2', grumbles and water noises from west vent but no water visible. |
| 9303 |
26 Jul 2018 @ 1535 |
--- |
MAB |
LOW water. Water only present in the lower reaches of north and east side of the entire basin. West side is entirely dry.
Clear water splashing 12-18" from the northerly vent. |
| 19291 |
15 Jul 2018 @ 1825 |
--- |
research-mab |
7-15-2018 CB CRATER SPRING 1825 See Note under Steamboat
Vixen platform & runoff channel is wet, water pooled in its tube but I did not see an eruption in the 15 minutes I observed. Pearl still has a yellow hue. Porkchop water is back up to the rim of the pool. Green dragon runoff is again clear however the runoff channels are coated in brown. Yellow funnel has no visible water but I can hear deep grumbling with splashing down deep. Echinus water level is good with nice runoff and a weak 2 vent boil. (hum!) Crater Spring water is LOW and murky brown/gray. Emerald Spring is the same, clear, green with weak convection waves.
https://geysertimes.org/note.php?id=9202 |
| 9129 |
11 Jul 2018 @ 0912 |
--- |
Tara |
Down about 3 feet from rim and boiling and bursting to about 1 foor in north end of crater. |
| 19276 |
27 Jun 2018 @ 1800 |
--- |
research-mab |
6-27-2018 CRATER SPRING – 1800 CB see Note under Steamboat
Vixen is back to more regular play. The steam vent by Vixen is quieter. Pearl has bubbles breaking the surface. Pork chop is down about 4" from the rim. Green dragon is putting out chocolate brown runoff. Yellow funnel is way low, muddy brown and turbulent. Blue mud steam vents water/mud is not visable. Crater Spring water level is low as is Echinus. Echinus run off channel is dry in many areas. This back basin is much the same as last night except for Vixen. sorry for the long note! Forgot about Emerald. . . cuz it is the same! Boiling in the East thumb, green and fairly clear.
https://geysertimes.org/note.php?id=8912 |
| 4783 |
04 Aug 2000 @ 0850 |
04 Aug 2000 @ 1000 |
research-mab |
08/04/2000 Crater Spring 0850-1000 3’-6’ eruptions |
| 4788 |
02 Aug 1987 @ 1800 |
--- |
research-mab |
8/2/1987 Crater Spring on the trail past Echinus – is erupting 2-3 feet high, not continually. |
| 4841 |
02 Aug 1983 @ 1800 |
--- |
research-mab |
8/2/1983 Marker at Crater Spring still in place so definitely dormant. Yellow Funnel still clear and overflowing. Blue drained. |
| 4978 |
13 Oct 1979 @ 1800 |
--- |
research-mab |
10/13/1979 Crater Spring was periodically throwing grey water across the trail this afternoon. Bursts were hitting out 6 to 8 feet. I moved the logs marking the trail back 5 feet. The water level in the pool itself was the lowest I have seen. |