| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 40116 |
28 Jun 2025 @ 1447 |
--- |
MAB |
former main vent fills and drops - not really an eruption - breakout hole behind splashes reach above ground level |
| 40161 |
23 Jun 2025 @ 1106 |
--- |
Falkaroa |
Small deep hole furthest from trail was noisily grumbling and ejecting small drops of water every second or so. |
| 39942 |
20 Jun 2025 @ 0823 |
--- |
MAB |
former main vent full then dropped- sm bubbles then began a slow refill- broken hole vent behind erupting with angled 10-12in splashes |
| 39849 |
13 Jun 2025 @ 1358 |
--- |
MAB |
area by former main vent flooded w a few bubbles but didn't not see increase in activity or pool drop over 5 min |
| 39839 |
13 Jun 2025 @ 0916 |
--- |
MAB |
West vent flooded - sm bubbles from main vent did not stay |
| 39484 |
29 May 2025 @ 0922 |
--- |
MAB |
former main vent had a few bubbles - broken hole vent with noisy spritzes above ground- gravel cleared vent to NE steamy but looks the same size |
| 39220 |
21 May 2025 @ 1047 |
--- |
MAB |
NPR8 Trinket Geyser - broken hole ie with above ground spritzes - former main vent quiet w goo - close to walk vent fairly dry - Gravel hole vent beyond to E steamy |
| 38697 |
27 Apr 2025 @ 0918 |
--- |
MAB |
larger splashes visible from the circular broken hole 1m past vent - no water visible in the gravel washed newer vent 1m NE past that - hot steamy gravel area ssw of Trinket towards Crackling Lake |
| 38497 |
19 Apr 2025 @ 0943 |
--- |
MAB |
Trinket - main vent silted in w gray goo - west vent more enclosed bubbling clear water - far (east) vent broke through - hot spot near bw to NE has cooled |
| 38420 |
10 Apr 2025 @ 1330 |
--- |
SantaFe108 |
Full and calm. Hole to the immediate back-left spitting water from depth loudly. |
| 38279 |
23 Feb 2025 @ 1455 |
--- |
K.Cooper |
Brown and grey and overflowing but not erupting. evidence of recent small explosion with debris around a 1ft in diameter new hole behind and too the left of NPR8 |
| 37817 |
29 Oct 2024 @ 0859 |
--- |
MAB |
looks better - water clearer w larger bubbles but didn't stay to see if it stopped and drained - little sandy vent has a little 3in fry pan closest to Trinket - the rest still without water |
| 37767 |
25 Oct 2024 @ 1632 |
--- |
MAB |
caught it in the act - 3 blips then drain - and repeat. Also noticed the same mud sludge in other nearby holes that used to be sinter white |
| 37719 |
24 Oct 2024 @ 1522 |
--- |
SantaFe108 |
Inactive, below overflow. Water is murky brown and runoff channels are dry. |
| 37676 |
22 Oct 2024 @ 0844 |
--- |
MAB |
main vent still flooded - dark deposit in outwash area - little sandy vent closest to bw quiet |
| 37498 |
10 Oct 2024 @ 1235 |
--- |
SantaFe108 |
Not active. In overflow, with occasional bubble. |
| 29054 |
22 Oct 2023 @ 1437 |
--- |
SantaFe108 |
Appears perpetual. West vent sputtering through sand. |
| 29194 |
24 Aug 2023 @ 1200 |
--- |
research-mab |
8/24 - no time noted - “Ghost” Geyser visible cycle {npr8 Trinket} |
| 24059 |
24 Sep 2022 @ 1114 |
--- |
MAB |
weak IE - seems to slow in intensity but never truly stopped or drained - west vent same w murky brown continuous boil |
| 23640 |
07 Sep 2022 @ 0944 |
--- |
MAB |
main vent full with steady sm bubbles - west vent muddy w large bubbles |
| 23251 |
18 Aug 2022 @ 1835 |
--- |
MAB |
blips in main vent but much lower water level - that other vent closer to the walk still in a busy boil w cloudy water |
| 22666 |
17 Jul 2022 @ 0843 |
17 Jul 2022 @ 0849 |
MAB |
west vent steady boil w dirty water - watched main vent 5min with tiny strings of bubbles with no change |
| 29082 |
09 Jul 2022 @ 1200 |
--- |
research-mab |
- no time noted - 7/9/22 Possibly new hole @ ghost snack {npr8 Trinket mab} |
| 29065 |
29 May 2022 @ 1200 |
--- |
research-mab |
5/29 “Fruitsnack” Spring (feature E of Whales Mouth) runoff channel turned from bright orange to completely white. {no time noted} |
| 21477 |
25 May 2022 @ 0804 |
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TSBryan |
marginally intermittent, interval 5-10 sec complete quiet, 10-15 sec splashes 6-10 inches |
| 37099 |
01 Sep 2019 @ 0000 |
--- |
research-mab |
~exact date unknown~
UNNG-NPR-8 “Trinket Geyser” Small geyser on the flat ~116 feet NE of Yellow Crown Crater, first known recent report via S. Eide Autumn 2019 {SPUT Vol 3 #5} after the Whale’s Mouth section of boardwalk reopened (closed ~2 years); possibly active in Spring of 1986. Informally named due to proximity to the Crown Jewels Springs area. NOTE: this was not present during the NPS 2018 Thermal Inventory per photo documentation. (Entries largely appear after it was added to the GT database in Oct 2021.) |