Last Known Eruption
4h 53m ago

Latest Eruptions

Eruption DurationInterval
13 Aug 2025 @ 165226m 6h 43m
13 Aug 2025 @ 100932m 17h 7m
12 Aug 2025 @ 1702 ie6h 33m
12 Aug 2025 @ 102930m 17h 9m
11 Aug 2025 @ 172030m 6h 3m
11 Aug 2025 @ 111718h 15m
10 Aug 2025 @ 17025h 39m
10 Aug 2025 @ 112332m 5h 26m
10 Aug 2025 @ 0557 ns~30m 10h 32m
09 Aug 2025 @ 1925~27m 9h 27m
09 Aug 2025 @ 095829m 12h 40m
08 Aug 2025 @ 21185h 2m
08 Aug 2025 @ 1616~26m 4h 41m
08 Aug 2025 @ 113526m 4h 26m
08 Aug 2025 @ 070926m 11h 3m
07 Aug 2025 @ 200624m 4h 22m
07 Aug 2025 @ 154423m 8h 10m
07 Aug 2025 @ 073428m 13h 55m
06 Aug 2025 @ 173926m 5h 30m
06 Aug 2025 @ 120930m 4h 42m
06 Aug 2025 @ 072729m 17h 13m
05 Aug 2025 @ 141426m 5h 23m
05 Aug 2025 @ 085126m 3h 51m
05 Aug 2025 @ 0500 ie>27m 8h 35m
04 Aug 2025 @ 202526m 6h 50m
04 Aug 2025 @ 133532m 5h 48m
04 Aug 2025 @ 074735m 11h 14m
03 Aug 2025 @ 203330m 20s 5h 31m
03 Aug 2025 @ 150228m 5h 36m
03 Aug 2025 @ 092632m 9h 57m
02 Aug 2025 @ 232930m 18s 4h 37m
02 Aug 2025 @ 185227m 4h 33m
02 Aug 2025 @ 141926m 4h 22m
02 Aug 2025 @ 095727m 13h 43m
01 Aug 2025 @ 201428m 4h 37m
01 Aug 2025 @ 1537~25m 4h 58m
01 Aug 2025 @ 103930m 14h 2m
31 Jul 2025 @ 203730m 3h 52m
31 Jul 2025 @ 1645 A4h 42m
31 Jul 2025 @ 1203 ie22h 0m
30 Jul 2025 @ 140332m 5h 27m
30 Jul 2025 @ 0836 ie14h 55m
29 Jul 2025 @ 174129m 3d 52m
26 Jul 2025 @ 164926m 4h 59m
26 Jul 2025 @ 115029m 4h 27m
26 Jul 2025 @ 072330m 11h 19m
25 Jul 2025 @ 200427m 20s 4h 33m
25 Jul 2025 @ 153126m 8h 9m
25 Jul 2025 @ 072232m 9h 12m
24 Jul 2025 @ 221027m 9s 4h 23m
24 Jul 2025 @ 174726m 9h 1m
24 Jul 2025 @ 084628m 14h 10m
23 Jul 2025 @ 183626m 4h 23m
23 Jul 2025 @ 141326m 4h 22m
23 Jul 2025 @ 0951~27m 12h 52m
22 Jul 2025 @ 205928m 8h 26m
22 Jul 2025 @ 123327m 4h 56m
22 Jul 2025 @ 073729m 16h 14m
21 Jul 2025 @ 152327m 4h 39m
21 Jul 2025 @ 104427m 45s 4h 14m
21 Jul 2025 @ 0630 A12h 2m
20 Jul 2025 @ 182825m 4h 39m
20 Jul 2025 @ 1349 ie1d 21h 13m
18 Jul 2025 @ 163630m 38s 5h 21m
18 Jul 2025 @ 111529m 14h 23m
17 Jul 2025 @ 205230m 38s 5h 27m
17 Jul 2025 @ 152528m 6h 6m
17 Jul 2025 @ 091915h 11m
16 Jul 2025 @ 1808 ie5h 38m
16 Jul 2025 @ 123029m 19h 4m
15 Jul 2025 @ 1726 ie5h 30m
15 Jul 2025 @ 115628m 4h 58m
15 Jul 2025 @ 065830m 18h 15m
14 Jul 2025 @ 124326m 3h 51m
14 Jul 2025 @ 085232m 12h 14m
13 Jul 2025 @ 203827m 27s 5h 15m
13 Jul 2025 @ 152327m 4h 47m
13 Jul 2025 @ 103630m 4h 10m
13 Jul 2025 @ 062629m 7h 56m
12 Jul 2025 @ 223029m 4h 47m
12 Jul 2025 @ 174327m 4h 51m
12 Jul 2025 @ 125226m 3h 45m
12 Jul 2025 @ 090730m 12h 54m
11 Jul 2025 @ 201328m 5h 7m
11 Jul 2025 @ 150629m 8h 41m
11 Jul 2025 @ 0625 ns9h 43m
10 Jul 2025 @ 204228m 22s 4h 35m
10 Jul 2025 @ 160726m 4h 47m
10 Jul 2025 @ 1120 ie14h 8m
09 Jul 2025 @ 2112 ns>30m 4h 24m
09 Jul 2025 @ 1648 ie11h 10m
09 Jul 2025 @ 0538 ie7h 37m
08 Jul 2025 @ 220129m 50s 5h 7m
08 Jul 2025 @ 165428m 5h 34m
08 Jul 2025 @ 1120 ie>26m 15h 5m
07 Jul 2025 @ 201530m 5h 11m
07 Jul 2025 @ 1504~28m 5h 2m
07 Jul 2025 @ 100230m 26s 16h 2m
06 Jul 2025 @ 1800 ie22h 44m
05 Jul 2025 @ 191630m 5h 1m

Interval Statistics

Interval Count100
Min3h 45m
Max3d 52m
Mean9h 23m
Median5h 38m

Latest Notes

Note IDStart Time (US/Mountain)End Time (US/Mountain)EntrantNote
40922 08 Aug 2025 @ 2005 --- Tara Clep on etc, Spasm empty, Jelly way down. Jet's cone drying, SFP erupted fairly recently.
40892 07 Aug 2025 @ 1940 --- Tara Clepsydra on steady, CSV down, Spasm dry, Jelly down ~3'. Jet, SFP, and Twig dry. Peanot overflowing. Morning low, Ftn water level covering most of rectangle.
40704 30 Jul 2025 @ 1815 --- K.Cooper stall. water well into the neck. jelly starting overflow down channel away from the boardwalk. 1845: Ftn 3in below base of oval, start of jelly seeping ovfl towards boardwalk. 1900: jelly bubbling started
40706 30 Jul 2025 @ 1800 --- deanl in a stall, Clep still pausing.
40694 29 Jul 2025 @ 1510 --- deanl clep is on solid - no stall. No Jet series. puddles separate but pretty close. clep's hole drained. Water in Fountain visible at a fairly "normal" pre-eruptive level. Water is just visible in Morning. I'm guessing Fountain about 2-3 hrs ago.
40686 28 Jul 2025 @ 1415 --- anicolov Fountain level too low to see. Clepsydra, Spasm, and Jelly all going. Jet and Twig both dry.
40609 25 Jul 2025 @ 1935 --- Tara Clepsydra on strong, CSV down, Spasm empty, Jelly down. Jet dry, SFP area somewhat wet, Twig dry. Ftn water level nearly to top of rectangle.
40586 24 Jul 2025 @ 2150 --- Tara Clepsydra on steady, CSV down. Spasm empty & runoff channel wet, Jelly way down. Jet dry, SFP channel wet. Twig dry.
40568 23 Jul 2025 @ 1330 --- deanl no jet , fountain, half way up rectangle, SFP recent
40548 21 Jul 2025 @ 1927 --- Mikemcc Clep still pausing. Spasm ie and Jelly just starting overflow in channel toward boardwalk. fountain water well into the neck.
40517 20 Jul 2025 @ 1730 20 Jul 2025 @ 1810 deanl from parking lot see Clep solid. at Fountain: water sitting above the base of the rectangle. No Jets, no Spasm, no Twig. SFP recent perhaps, based on damp runoff.
40465 18 Jul 2025 @ 1520 --- Tara Clep on, CSV down, Spasm empty, Jelly ~3' down.Jet & Twig dry. Water level in Ftn right at bottom of rectangle.
40448 17 Jul 2025 @ 1945 --- Tara Clepsydra on strong, CSV down, Spasm empty, Jelly down ~4'. Jet active, Twig dry. Water level in Ftn ~1' below rectangle.
40238 06 Jul 2025 @ 0800 --- Dan A Per visitor report Clep pausing around this time, fountain and morning empty.
40192 03 Jul 2025 @ 0610 --- Dan A Clep pausing in stall
40179 01 Jul 2025 @ 1835 --- Tara Clepsydra was on strong, CSV down, Spasm empty, Jelly ~3' down, Jet active. Beaches were small and the puddles in front of Fountain were still draining/drying, so I would estimate about 60-90 minutes since the previous eruption ended.
39909 17 Jun 2025 @ 1538 --- Scott H Clep off
39911 17 Jun 2025 @ 1400 --- Scott H no eruption yet
39820 12 Jun 2025 @ 1820 --- Tara Clep on strong, CSV down, Spasm empty, Jelly ~5' down. Jet active, SFP dry, Twig dry. Water level in Ftn below rectangle.
39788 10 Jun 2025 @ 1615 --- Kyle Clep.ie, CSV is empty, Spasm empty, Jet active. Twig dry. FTN water levels low.
39786 09 Jun 2025 @ 2115 --- Kyle left FTN after watching sunset. Clep on strong and steady. Clep SV empty. Jet active at approximately 7 min intervals. No water visible in FTN. MT steaming. Twig, Spasm, SFP etc quiet. Also, FTN was not ie at 0930 as I headed N across Fountain Flats
39706 06 Jun 2025 @ 1430 --- Kyle clepsydra on strong and steady, Clep SV empty, Jet active
39705 06 Jun 2025 @ 0902 --- Tara Clep on strong, CSV down, Spasm ie, Jelly down ~6". Jet dry, Twig steaming. Water level in Ftn covering bottom of rectangle.
39700 06 Jun 2025 @ 0600 --- Kyle Clepsydra on strong and steady, Clep side vent full. pools surrounding FTN steaming, Jet, Spasm, Jelly all empty and quiet
39694 05 Jun 2025 @ 1935 --- Tara Clep on steady, CSV down, Spasm empty, Jelly down ~3'. Jet active, Twig dry. Ftn water level well below rectangle.
39509 29 May 2025 @ 1955 --- Tara Clep on steady, CSV down, Spasm empty, Jelly down ~2'. Jet active, SFP dry, Twig dry. Ftn water level very low, guessing around 3 hrs PE based on puddles.
39463 29 May 2025 @ 1310 --- mjacka Arrived at 11:38. Clepsydra going strong. P.E.A.N.O.T was half full and bubbling. Nothing else. Caught Spasm ie at11:45. NO other activity. Fountain, as noted, at 12:10. Possible Morning's Thief at12:14. Hard to see through steam. After Fountain stopped, only change was Spasm had stopped. At 12:52, Jet started rumbling, but never went while I was there. Clepsydra paused at 12:46, resumed at 12:54,paused again at12:58, and resumed at 13:05. No other changes when I left at 13:10.
39446 28 May 2025 @ 1835 --- Tara Clep on strong, CSV down, Jelly down ~3' down, Spasm empty. Jet & SFP dry, Twig dry. Ftn water level at bottom of rectangle. Not a stall, so double interval stall + normal.
39415 27 May 2025 @ 1940 --- Tara Clep on steady, CSV down, Jelly down, Spasm empty. Jet cone wet, SFP just starting. Twig dry. Water level in Ftn well below rectangle.
39364 26 May 2025 @ 0748 --- TSBryan empty craters, Clepsydra on without pausing
39344 25 May 2025 @ 0840 --- User34 Water out of sight, in Morning as well
39314 24 May 2025 @ 1210 --- Tara Clepsydra on strong, CSV down. Jelly down ~1.5', Spasm empty. SFP dry, Jet dry, Twig dry. Water level in Ftn covering bottom of rectangle.
39258 22 May 2025 @ 1346 --- Darcie Post eruptive. Cleps pausing.
39165 19 May 2025 @ 0745 --- BrandonC In stall
39154 18 May 2025 @ 0950 --- Graham Water covering the rocks after an aborted stall, just 27m after Fountain quit. 1009 rising as Clepsydra pauses.
39151 18 May 2025 @ 0654 --- Graham Water covering rocks. Just below oval in a stall
39123 17 May 2025 @ 0909 --- Graham Rocks recently covered in the stall. 0939 at bottom of the oval.
39098 16 May 2025 @ 1740 --- Tara Clep on steady, CSV down, Jelly down ~3', Spasm empty. SFP looks post eruptive, Jet dry, Twig dry. Peanot bubbling over vent and overflowing. Ftn water level well below rectangle, hard to see with the steam.
39040 14 May 2025 @ 0915 --- Tara In a stall per Graham. I think he said Clep came on steady around 0850. Jelly had at least 1 eruption.
39046 14 May 2025 @ 0744 --- Graham Water rising during a stall. now above the bottom of the oval. 0839 mid oval.
39028 13 May 2025 @ 0845 --- Graham Still having pauses
39012 12 May 2025 @ 1916 --- Graham Fountain and Motning water levels a lot higher than recent stalls. Likely a longer series of pauses this time. Jelly very close to overflow. Spasm empty and puffing steam. Jet active. 1928 Jelly in overflow. No eruption by 1942 when I left for Economic.
38907 09 May 2025 @ 1300 --- Tara in a stall, Clep pausing and Spasm coming up
38756 03 May 2025 @ 0705 --- Mikemcc In a stall. Spasm low boil. Clepsydra pausing.
38714 30 Apr 2025 @ 1440 --- Tara Clepsydra on strong, CSV down, Jelly ~4' down, Spasm empty. Jet active, SFP area wet, Twig dry. Ftn water level below rectangle. Regular interval, no stall.
38608 24 Apr 2025 @ 1633 --- Graham Hard to see the crater but water has started to rise during the stall. Some rocks still above water. 1653 rocks all covered.
38587 23 Apr 2025 @ 1428 --- K.Cooper No Stall
38555 20 Apr 2025 @ 1329 --- Graham Water almost covering the rocks. Jelly almost full, but its runoff channels are dry. Spasm empty. Water visible in Morning. Jet not active. Short stall based on Clepsydra seen paused at 1245 and on steady at 1320.
38455 18 Apr 2025 @ 0850 --- Graham Post eruptive. Boardwalk soaked, Fountain runoff wet and CSV high. Spasm and Jelly empty.
38334 28 Feb 2025 @ 0901 --- K.Cooper In Stall - Visible water in morning and MT light boiling. Ftn dropping fast 0930
38178 09 Jan 2025 @ 1720 --- Graham No Fountain Yet. Stall interval.
37595 16 Oct 2024 @ 1415 --- Bhoffer Clep in pause mode, stall. I'm headed to Norris for a bit
37537 12 Oct 2024 @ 1915 --- Tara Clepsydra on strong, Spasm empty, Jet dry. Water level in Ftn near top of rectangle.
37530 12 Oct 2024 @ 0930 --- Tara Another observer reported that at 0800, Clepsydra was on strong, CSV empty, and fairly high water level in Jelly. Jet had been grumbly and erratic. When Ftn water level became visible at about 1030, most of the rocks were covered, indicating a relatively short stall (2-3 hrs of Clepsydra pauses). This water level held with only slight variation until 1306 when it began cycles of drop and rise with the water level gradually lowering. Larger drops at 1423 and 1432 led up to the final rise at 1435. No water was visible in MT until over a minute into Fountain. No SFP seen.
37525 11 Oct 2024 @ 1540 --- Ben VL Water in Fountain out of sight, & Morning only just visible from the overlook. Puddle area seems fairly dry.
37398 04 Oct 2024 @ 1235 --- Tara Clepsydra on strong, CSV down, Spasm dry, Jelly down ~3'. Jet active, Twig dry. Water level in Ftn 2/3 covering rectangle.
37270 29 Sep 2024 @ 2150 --- Ben VL Clep on steady, CSV splashing, Spasm empty, Jelly very low but water is visible. FTN above top of rectangle, Morning also looks a bit high.
37236 29 Sep 2024 @ 0843 --- User34 No water visible in Fountain or Morning, Clepsydra on strong and its side vent high with water, Jet grumbling
37227 28 Sep 2024 @ 1520 --- Tara Clep on, Spasm empty, Jelly down. Jet active, Twig dry. Water level in Ftn halfway up rectangle.
37205 28 Sep 2024 @ 0925 --- Tara Clepsydra on strong, CSV down, Spasm ie, Jelly down ~1'. Jet and Twig dry, too steamy to see Ftn. Beaches starting to show, ~3-4 hrs since last eruption. SFP 0952 ie. 0955 water level in Ftn above bottom of rectangle.
37173 26 Sep 2024 @ 1010 --- Graham No water visible in Fountain, Morning, CSV, or Spasm. Low water in Jelly. Clep ie.
37141 25 Sep 2024 @ 0745 --- TSBryan no water visible. Clepsydra on steady, Spasm and Jet active, all else quiet.
37137 24 Sep 2024 @ 1915 --- Tara Clepsydra on steady and all that jazz, Spasm empty, Jet active. Twig dry, Peanot overflowing. Ftn water level low, at least 1' below rectangle, Morning also quite low.
37120 22 Sep 2024 @ 1515 --- ghost842 Water rose above the rectangle and stayed No eruption yet
37107 21 Sep 2024 @ 1633 --- ghost842 Water at the bottom of the rectangle Jet active, no spasm twig or sfp now
37072 19 Sep 2024 @ 1651 --- Graham Water starting to rise during the stall. 1710 low rocks covered, high ones not as Clepsydra came on steady.
37045 18 Sep 2024 @ 1102 --- Graham High water in a stall.
36990 15 Sep 2024 @ 1400 --- Tara Clepsydra on strong, Spasm empty, Jelly down ~5'. Jet active, Twig dry. Water level in Ftn at bottom of rectangle.
36974 14 Sep 2024 @ 0950 --- Tara Clepsydra on strong, no signs of a stall interval. Spasm empty, Jelly down, Jet active, Twig dry. Peanot overflowing with bubbling over vent. Water level in Ftn a few " below rectangle.
36965 13 Sep 2024 @ 1924 --- Mikemcc Three clepsydra pauses. No water visible in fountain. No water visible in morning from top of stairs. End of observations.
36943 12 Sep 2024 @ 1730 --- Ben VL In a stall. Clep on steady, high water in Fountain & Morning.
36922 12 Sep 2024 @ 0930 --- Graham Water visible in Fountain, rectangle covered. Lots of rock visible too.
36880 10 Sep 2024 @ 0415 --- Kyle Clep on strong and steady. jet in series Spasm ie FTN platform dry. water level not discernible. MT steaming semi heavily
36875 09 Sep 2024 @ 1645 --- Kyle Clep on strong and steady. Jelly down, Spasm and Jet dry and quiet. FTN water level at base of rocks on right side
36855 08 Sep 2024 @ 1555 --- Tara water level had risen to ~3" below rectangle
36854 08 Sep 2024 @ 1430 --- Tara Spasm empty, Jelly way down, Jet dry & grumbly. Water level in Ftn ~8' below rectangle
36845 08 Sep 2024 @ 0845 --- steve Clepsydra I.e., Spasm steaming, Fountain’s runoff channels are starting to dry. Nothing else is active. SFP’s runoff channel is also wet.
36842 08 Sep 2024 @ 0701 --- SteveO Clepsydra paused after Fountain.
36819 07 Sep 2024 @ 0649 --- Graham Post eruptive Clepsydra pauses. Rocks visible in Fountain. CSV, Jelly, Spasm all down.
36786 06 Sep 2024 @ 0730 --- Graham Clepsydra did not pause after Fountain.
36784 05 Sep 2024 @ 2110 --- Tara no eruption yet, left area
36783 05 Sep 2024 @ 1915 --- Tara Clepsydra on strong, CSV down, Jelly down ~4', Spasm empty. Jet dry and grumbly, SFP channel partially dry, Twig dry. Fountain water level at bottom of rectangle.
36771 05 Sep 2024 @ 0933 --- steve The runoff channels are wet as is the boardwalk. Clepsydra is weak, so I think Fountain recently erupted.
36749 04 Sep 2024 @ 0652 --- Graham Not in a stall. Rocks visible in Fountain. Clepsydra steady. CSV empty and not splashing. SFP ie. no Jet. Jelly down below the beach.
36722 03 Sep 2024 @ 1235 --- CP Lightning seen. Left the area.
36720 03 Sep 2024 @ 1214 --- CP In a stall, Clep on strong and steady
36668 01 Sep 2024 @ 0702 --- Graham In a stall. Clepsydra pausing. Rocks covered. Spasm rising slowly. Jelly just below overflow without Spasm overflowing into it.
36634 30 Aug 2024 @ 1433 --- music_geek Walked up to the last splash from Fountain. Eruption ended at this time.
36603 28 Aug 2024 @ 1945 --- Tara Clepsydra on strong. Spasm down, runoff channel wet, Jelly down ~1'. Jet active, Twig dry. Water level in Ftn at bottom of rectangle.
36604 28 Aug 2024 @ 1325 --- Kyle Clepsydra on strong and steady, CSV down, Jelly down, Spasm dry and quiet,SFP wet and lightly steaming, Jet active, Twig occasional low boil not ie, FTN water about 1 meter down
36592 27 Aug 2024 @ 1820 --- Tara Clepsydra on strong, CSV down, Spasm dry, Jelly down. Jet active, Twig dry. Water level in Ftn below rectangle.
36571 27 Aug 2024 @ 0953 --- Kyle no water visible in FTN. clep on strong and steady, CSV down, Jelly down, Spasm ie, jet in series Catch basins and runoff around FTN wet but look cold.
36552 25 Aug 2024 @ 1500 --- CP Stalled
36520 23 Aug 2024 @ 1150 --- Kyle Clepsydra on strong and steady, Jelly 8-10 inches below rim, spasm dry and quiet, SFP dry, Jet rumbling not erupting water levels in FTN ( rocks covered) and Morning visible from boardwalk. no water visible in MT. Twig dry. Stall behavior
36513 22 Aug 2024 @ 1715 --- Kyle Clepsydra on strong and steady. Jelly down. Spasm empty. SFP quiet. Twig quiet. Jet active. water in FNT about 3 ft down. no water visible in MT
36493 20 Aug 2024 @ 1838 --- Tara Clepsydra on strong, CSV down, Spasm empty, Jelly down ~4'. SFP ie, Jet formation wet. Twig & Peanot dry. Water level in Ftn ~1" below rectangle.
36440 17 Aug 2024 @ 1716 --- LynnS Fountain water level out in the neck;.Spasm vigorous, Clepsydra in short, weak pause mode, Jet rumbling, Jelly full and overflowing
36427 16 Aug 2024 @ 1840 --- Tara Clepsydra on strong, CSV down, Spasm empty, Jelly down ~3'. Jet active, Twig dry. Water level in Ftn just below rectangle.
36412 14 Aug 2024 @ 1900 --- Tara Clepsydra on strong, CSV down, Spasm empty. Jet active. Water level in Ftn ~2" below rectangle
36320 07 Aug 2024 @ 2155 --- Tara had not erupted yet
EntrySourceLinkComment
19 Sep 2020 @ 1600 JohnO https://youtu.be/y6pMc7czpk4 Fountain Geyser's September 19, 2020 eruption at 16:00. Video composed of five clips: Clip 1 (showing start of eruption) - 00:06 to 00:31; Clip 2 - 00:31 to 01:50; Clip 3 - 01:50 to 02:03; Clip 4 - 02:03 to 02:11; Clip 5 - 02:11 to 02:29
21 Aug 2020 @ 1207 aferrara https://drive.google.com/file/d/15-nLAR0laE1s3smUJt7CelqabL0aTiQe/view?usp=drivesdk Electronic data showing short interval on Fountain
05 Jul 2020 @ 1838 JSJ https://www.youtube.com/watch?v=vT7_qNdGSq8 One minute video showing Fountain Geyser's 6:38 to 7:05 PM eruption on 5 July 2020.
11 Aug 2019 @ 1844 JSJ https://www.youtube.com/watch?v=FO44w30GuCA Video showing Fountain Geyser's 6:44 to 7:13 PM eruption on 11 August 2019.
19 Sep 2019 @ 0952 fhessler https://www.facebook.com/fhessler/videos/10103783061027731/?notif_id=1569013616768815¬if_t=feedback_reaction_generic Fountain 9 19 19
02 Jun 2018 @ 1337 JSJ https://www.flickr.com/photos/jsjgeology/42309660844 Photo (1 of 8) of Fountain Geyser's 1:37 to 2:06 PM eruption on 2 June 2018.
13 Jun 2018 @ 1715 JSJ https://www.flickr.com/photos/jsjgeology/43028521341 Photo (out of 3) of Fountain Geyser's 5:15 to 5:42 PM eruption on 13 June 2018.
10 Aug 2017 @ 1658 JSJ https://www.flickr.com/photos/jsjgeology/35763508704 Photo (out of 4) of Fountain Geyser's 4:58 to 5:27 PM eruption on 10 August 2017.
06 Aug 2017 @ 2048 JSJ https://www.flickr.com/photos/jsjgeology/35789345233 Photo of Fountain Geyser's 8:48 to 9:18 PM eruption on 6 August 2017.
06 Aug 2017 @ 1639 JSJ https://www.flickr.com/photos/jsjgeology/36552412286 Photo (1 of 2) of Fountain Geyser's 4:39 to 5:08 PM eruption on 6 August 2017.
06 Aug 2017 @ 1300 JSJ https://www.flickr.com/photos/jsjgeology/36202001980 Photo of Fountain Geyser's 1:00 to 1:29 PM eruption on 6 August 2017.
05 Aug 2017 @ 1933 JSJ https://www.flickr.com/photos/jsjgeology/36429738632 Photo (out of 5) of Fountain Geyser's 7:33 to 8:00 PM eruption on 5 August 2017.
01 Aug 2017 @ 1928 JSJ https://www.flickr.com/photos/jsjgeology/36429175502 Photo (out of 4) of Fountain Geyser's 7:28 to 7:57 PM eruption on 1 August 2017.
28 Jul 2017 @ 1908 JSJ https://www.flickr.com/photos/jsjgeology/36597568625 Photo (1 of 4) of Fountain Geyser's 7:08 to 7:35 PM eruption on 28 July 2017.
28 Jul 2017 @ 1508 JSJ https://www.flickr.com/photos/jsjgeology/36419308922 Photo (1 of 2) of Fountain Geyser's 3:08 to 3:35 PM eruption on 28 July 2017.
03 Jun 2017 @ 1525 JSJ https://www.flickr.com/photos/jsjgeology/35333844616 Photo (out of 9) of Fountain Geyser's 3:24 to 3:52 PM eruption on 3 June 2017.
03 Jun 2017 @ 1046 JSJ https://www.flickr.com/photos/jsjgeology/34530081534 Photo (out of 8) of Fountain Geyser's 10:46 to 11:14 AM eruption on 3 June 2017.
07 Jul 2016 @ 1554 JSJ https://www.youtube.com/watch?v=M3a9NF49VNk#t=15m45s Clips 37-42 of this video compilation (time stamp 15:45 to the end) show Fountain Geyser's 3:54 to 4:20 PM eruption on 7 July 2016.
09 Jun 2016 @ 1720 JSJ https://www.youtube.com/watch?v=M3a9NF49VNk#t=12m16s Clips 33-36 of this video compilation (time stamp 12:16 to 15:44) show Fountain Geyser's 5:20 to 5:46 PM eruption on 9 June 2016.
09 Jun 2016 @ 1156 JSJ https://www.youtube.com/watch?v=M3a9NF49VNk#t=7m43s Clips 20-32 of this video compilation (time stamp 7:43 to 12:15) show Fountain Geyser's 11:56 AM to 12:24 PM eruption on 9 June 2016.
Baseline does not exist.