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Observations for 2021 August 04


Headed out to Grand at dawn, with the expectation that Fan & Mortar would dominate the day. Got to Grand in time for what appears to have been a Turban Delay eruption. The following eruption of Turban had no overflow and the interval was short, which tends to confirm that. Grand erupted on the subsequent opportunity, showing that it can still have Two Turban Delays. This eruption had two bursts, with the first burst lasting nearly nine minutes. The pool drained and Vent & Turban quit immediately after.

During Grand, Penta had a steam-phase type eruption. I didn't see much of it, just the ending strong steam activity. The group was in a deep drain, with Sawmill rumbling, Spasmodic quiet, Slurp a fumarole, Churn out of sight and Oval erupting in the north vent.

From that it was time to head north to Fan & Mortar. All morning there had been no change in activity-- Angle Vent was on, with the other two Fan vents showing occasional, cyclical activity. After seeing some of this, I went over to East Sentinel. The activity along the north rim was taller and wider than yesterday, but there wasn't any evidence of an overnight eruption.

Following that, I got a Daisy eruption. It was short, 3m18s. Over at Splendid, the activity from Side Boiler started about 7 minutes later, shifting over to the Main vent about a minute later.

In the afternoon, went out to Grand and found Rift in eruption. Sput D and Percolator were also active. Sawmill was quiet. About 40 minutes later, Percolator shut off, while Sput D continued.

It was about then that I looked over toward Sawmill, and saw Uncertain in eruption. This was probably within a minute of the start, as Suzanne had been looking that way just before. What I saw of the eruption lasted maybe another 60 to 90 seconds. Sawmill started about 20 minutes later, and I saw that eruption end after the upcoming Grand eruption, for a duration of almost 40 minutes.

The One Burst Grand eruption followed shortly after Sawmill started, and lasted just under nine minutes. During the eruption Rift quit. We also got the Beehive Indicator call during the eruption.

As mentioned above, Sawmill quit shortly after Grand. At that time Belgian and Crystal were high, so Slurp was erupting as a geyser.

At this point, Fan & Mortar had their only change in behavior of the day. Angle vent finally quit for a few minutes, and a few splashes in Main vent were seen. Then it was back to the previous activity for the rest of the day.

Went back out to Grand at sunset. Sawmill was erupting, with the rest of the Group back in drain mode (low Belgian, Slurp fumarole, etc.)

About a half hour after I arrived, Turban appeared as if it was going to erupt. The lighting made seeing a little difficult, but it appeared that Vent overflowed during this time. The short Turban eruption duration tends to confirm an eruption attempt, as does the next Turban interval, which had no overflow from Grand.

The next Turban eruption looked like the one two earlier. This time Grand followed through. The first Turban start I've seen this visit. It was dark enough that the flashlights were out, but my attempt to see the start of Vent were thwarted by the steam. The first burst only lasted nine minutes, so a second burst wasn't guaranteed, but we did get one. There was no attempt at a third, even though Vent & Turban continued.


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Observations for 2021 August 03


Was a bit surprised to arrive at Grand and find the pool full. It was about 16 hours since the last observed eruption, and I had expected there to have been a couple of eruptions during that time, and I'd arrive to find the pool refilling and not at overflow.

Over in the Sawmill Group, a deep drain was in progress. Sawmill and Uncertain were gurgling at depth. Slurp was roaring and Penta also rumbling. Spasmodic's main pool levels were not visible. Oval was down deep and erupting from the northern vent. Penta's Sixth Vent was a frying pan of sorts, probably full of rainwater with steam forcing its way through and causing the bubbling.

Saw a Turban eruption shortly after I arrived, and the next Turban was 34 minutes later. Shortly after that we got an eruption of West Triplet along with Percolator and Sput D. Half hour later, West Triplet ended without Rift starting.

Grand itself waited three more Turban eruption intervals before it erupted. A nine minute first burst was followed by a typical 3/4 minute second burst. Vent and Turban even continued despite the total duration being well over ten minutes long.

After this we learned that the electronic recorder for Grand showed only one eruption during the night, about five hours before my arrival. The other interval was well over eleven hours long. This seems extremely long, and seems like it could be a pair of short intervals, but the recorder's graph clearly doesn't show it. Will have to wait and see if Grand does something like that again.

From there it was down to Fan and Mortar for the first event of the day. Lots of Main Vent splashing while Bottom Vent erupted for well over half an hour. Then nothing much.

Went on down to check on East Sentinel. It seems that the boiling along the rim wasn't as active, and appeared to be cycling over a period of a minute or so. Didn't expect much, but will keep checking on it in conjunction with Fan & Mortar trips.

Another Fan & Mortar event took place just before it was time to go to Grand, so I went there instead. Was similar to the earlier event, and didn't result in an eruption. As I left and headed to wait at Grand, I got to see the eruption from the bike trail at the curve by Oblong. So went up to Daisy instead, were I got a pretty standard eruption lasting just over 3-1/2 minutes.

In the evening, we got a third Fan & Mortar event. This one even featured a short River Vent pause, and all the vents started moments after River restarted. For a while the eruptive activity looked good enough to start preparing to get wet, but after a while, things died down. At no time today did I see any surging in Upper Mortar, although Lower was quite active.

Expected Grand to wait until after dark to erupt, but instead it cooperated and gave us a nice start while there was still plenty of light. Was another duration over 12 minutes, so no chance of any second burst.

Back in the cabin, heard the call on the radio for Beehive's Indicator, so rushed out in the dark to see it start as we walked up on Anemone. A good number of people there considering it was dark. Again, I tried but didn't see any activity from the little crack in the base of the cone.


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Observations for 2021 August 02


Got out as far as an erupting Castle when Grand started. Decided to watch the One Burst Grand from there, although I did wander down the the bridge when Sawmill started toward the end of the Grand eruption. Was amusing to see that there was still some debris that could be pushed along at the head of the runoff. Also, Castle sent nicely into steam.

Despite the poor weather, decided to head on down to Artemisia. Sitting under the tree at the south, I had just seen an eruption of Atomizer. In the Artemisia fog, I could hear the bubbling in the vent before the water column was visible. So I was surprised that right after, off to the left/south, I could hear rumbling. The radio had announced that Beehive had just started, and I was hearing the eruption. When I mentioned it, a bit later Suzanne could hear it too. After a few minutes, it disappeared and i didn't hear it again.

Must be some unusual "whisper gallery" effect, where the sound is amplified at some locations by the reflections and echos. It was an overcast, damp day, so conditions might make a difference. Something to consider the next time someone gets a radio call of a Beehive eruption there.

Left before the eruption, because was starting to not like being so far from dry shelter. But decided a little side trip was in order, and needed to see what East Sentinel looked like.

East Sentinel Geyser, showing recent wash zone

At first, I thought it didn't look all that encouraging, although more active than last year when the pool was completely calm. Then I noticed all the dead vegetation. The large mound of grass just to the left of the formations was brown and all bent upstream. Farther beyond, in the alcove to the let, was more dead vegetation and what even appeared to be water flow marks. Some of the dead plants are about 10 meters from the vent. On the cone, a couple of catch basins had water in them.

About 36 hours ago, we did have strong rains, and the catch basins could be still holding that. But the dead plants seemed fresh. In any case, East Sentinel needs some observing this season.

Arrived at the early afternoon Grand just in time to see the boops of a delay Turban interval well over 35 minutes long. It took seven more Turban eruption intervals before we finally got the One Burst Grand eruption. During that time the crowd grew bored with the wait, which ended well outside the NPS window. It didn't help that the weather was much nicer than the forecast said. (We didn't get rained on.)

With the rain supposed to come in, and nothing much expected, we didn't go back out. Turns out the rains really didn't start until it was time for the next Grand eruption, after sunset.


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Observations for 2021 August 01


At dawn it was foggy. The Sawmill Group was high enough that Slurp was being drowned, with little noise and occasional droplets that were visible. Grand was at the twelve hour mark, and I expected a wait and an opportunity to do some reading. THe eruption was less than ten minutes later. Started with a boop in the fog that sounded like Turban, until we realized that it was not followed by more sounds. Grand finally erupted about 15 seconds later.

It was a good day to leave the Upper Basin, so did a loop through the Lower Basin. Got to Fountain and discovered I'd left the notebook pouch back in the truck. Did see a Jet before I headed back. Got back and as I passed Silex, Fountain started. Did see the second Morning's Thief eruption, and it turned out Jet was frequent during the whole eruption. And then quit when Fountain did.

When it was time for the next Grand eruption, came out to find Sawmill and Rift in eruption. The Sawmill Group was high, with Belgian full and Crystal overflowing into and drowning Slurp. The Turban eruption I saw was the start of a Delay interval. Unlike the other day, there was only a two Turban eruption wait. During this time, Rift continued to erupt, and Sput D joined it, erupting with Rift until it ended later. The Grand eruption was a nondescript short one burst. Rift ended sometime during Grand.

Before we could leave Grand, water in Beehive's Indicater was called. Got over in plenty of time for the eruption. I did not see the little sput at the base of Beehive's cone that I saw back in May, but the Close-to-Cone indicator could be seen to be active once the Indicator proper ended. This bubbling continued after Beehve ended. Sawmill was still erupting as we went back for the bikes, a duration of at least 2h20m.

Late afternoon Grand was a short wait of a couple of Turban eruption intervals. Sawmill was erupting again, but I was also seeing Tardy erupting during the wait. The Grand eruption had a long second burst, followed by an immediate quitting by Vent and Turban.

Deer on Grand hillside.

During the eruption, a deer appeared from the trees behind Rift. It seemed to completely ignore Grand erupting, and disappeared behind the water column from my vantage point, only to appear again behind Turban. The marmots on the hillside seemed to object to its being there, as they put up a bit of racket. The deer continued to graze on the hillside after we left the area.

With nothing much else going on, went out to Great Fountain, arriving with it well into overflow. Only waited a half hour for the eruption, that started with a large burst and flood of water. Not much else happened after that, although the third burst started with a nice explosion.


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Observations for 2021 July 31


Got the full long Grand treatment. First a Turban delay interval of well over 35 minutes (didn't see the Turban start, just in eruption.) Followed by at least two more series of the strong, vigorous Turban eruptions that are themselves followed by no overflow eruptions. A total of eight Turban intervals, stretching the Grand interval to almost 8-1/2 hours. The eruption itself was short, and we had almost a minute of the pool trying to refill, only to lose out to Vent & Turban, who immediately quit.

But the long interval had a good effect. Many saw the Grand eruption from Sawmill, as Uncertain was splashing frequently and fairly heavily all during that time. As I left Grand, saw a couple of those surges as passing by Bulger. So stuck around and was almost immediately rewarded with the first observed eruption of Uncertain since the dormancy started. It seemed the duration was shorter than I remember, only about 2-1/2 to 3 minutes, depending on how you measure the end (and that I spend so much time fumbling to get the camera running I didn't get a good start time.)

Stuck around after as Sawmill was still rising, as were Spasmodic and Penta, but after twenty or so minutes, suddenly Sawmill's water level dropped, at least 30cm, and out of sight.

There was a call for Fan & Mortar event as I was leaving Castle, so headed down there to see lots of Fan's Main Vent splashing, and then twenty minutes of Bottom Vent erupting. When the fan vents finally started, they weren't all that interesting.

Headed out to the late afternoon Grand with the expectation of getting rained on. So was wearing my raingear when the eruption started, with the wind coming right at the benches area. Another non-descript one burst eruption.

That's when the rain started up, but let up enough to let us get back to the cabin without getting wet. Started fixing a dinner when another report of Fan & Mortar showing signs of life came in. Because the rain was getting harder, tried to ignore these reports, until it was too late and we realized we were in the wrong place, and should've headed out earlier.


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Observations for 2021 July 30


Started the day in a foggy Grand/Sawmill Group. Was out because it was a longer than average interval for Grand, but arrived right at the end. Did get to see the Sawmill Group in a deep drain mode, with Oval erupting down deep from the north vent, and Slurp a noisy fumarole I could hear walking up past Scalloped.

Came in to get more organized, and got back out to see my first Sawmill eruption in years. The group was still well below overflow otherwise. Tardy started about ten minutes after I arrived, quitting a few minutes later. Within a couple of minutes, Sawmill did the same. That is the sort of behavior I remember from the Group when Sawmill was having short low pool eruptions.

Saw another Sawmill eruption before the next Grand wait. That eruption featured activity by Percolator, Sput D and West Triplet leading into an eruption of Rift. The duration of West Triplet was short, only about one half hour, with the start of Rift around the 23 minute mark. That is much shorter than I am used to seeing. Then we got a Turban Delay interval.

Grand erupted two Turban intervals later. It was an eruption that lasted over 13-1/2 minutes. Sawmill started, again, just before Grand. It appears that Sawmill is quite frequent.

Got the call to go down at Fan & Mortar. Got to see strong, intermittent activity from the High vent, with steady overflow from Gold, but nothing much came of it. It appears this year it's not unusual for the Mortar frying pans to be quite active, and for Upper Mortar to surge but not build at the end of a good cycle like this one.

The rains kept threatening during the late afternoon, but we never got more than a sprinkling or two. Finally, after the six hour mark, I decided to risk getting wet and headed out to Grand. There we got a short, strong and vigorous Turban eruption which acts as if there was a Delay interval. That was followed by a Turban interval with no overflow from Grand, which pretty much confirmed things. It ended up being two more Turban intervals before Grand started.

It was an explosive start from a pool that had small waves, but no booping. In contrast to the earlier eruption, this one was short, just over nine minutes. At the end, Turban and Vent were exceptionally strong, but we never saw any evidence that Grand even tried to fill back up.

And shortly before Grand, Sawmill started again.


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GeyserLog 3.1.3


GeyserLog 3.1.3 is now available on the iOS AppStore.

Turns out the background server fetch was never working correctly. But, in part because of the poor internet in Yellowstone, I never really looked into it until this past week.

Also added, in Stopwatch, a display of the elapsed time since the last entry if a feature has been selected.

Thanks to Brian Gorman for help in doing the field work testing this release.

I expect this to be the last update for a while.


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GeyserLog 3.1


GeyserLog 3.1 is now available on the iOS AppStore. A month of using the older version of the app showed places where it could be improved.

The most important is that I finally fixed an intermittent problem with updating recent posts. Add comments or durations should now work correctly all the time.

The enhanced feature for this release is a new view that allows recording of video (and taking still photos) from within the app. Recording can now display a timestamp, making it a lot easier to get event times during playback. There current aren't any options, with the most notable missing feature is the lack of a way to zoom in. That, and support for the flash, is on the agenda for the next release.

The recording view can also be accessed from the Stopwatch view, and from there adds a stopwatch overlay to the display. It includes live buttons so that the stopwatch can be started and stopped while recording video. A possible future enhancement would be to add a "Submit" button, allowing GeyserGamers to still try for aFirst!.

There were also a few other minor bug fixes.

Once again, geyser gazers are welcome to contact me to get a Promo Code which will allow downloading of the app for free. I'm also open to suggestions for features users would like to see added, or finding out about bugs that need to be fixed.


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Official Names


Back in the mid 1990s I learned that one of the microbiologists had gotten the name she'd given to her favorite slime source near Sulphur Cauldron at Mud Volcano made official by the U.S. Board of Geographic Names. This kinda annoyed me, because it seemed self-important, while people who had been observing geyser activity for years had never tried to inflict their names in this fashion. But it also gave me an idea.

I tend to not want to give new features names. I prefer, if needed, to reference new, small holes in relation to nearby, more established features. Hence all those sputs near Grand with designations like Sput A and Sput D and such.

The only names I can remember being responsible for were joint efforts with other gazers like Tomáš Vachuda-- Mortar's "Bottom Vent" and the nearby "Norris Pool." Not much chance of getting names like those approved, and for good reason. (And of course, "The Great Flounder.")

But there were, and still are, a lot of names which have been in use for decades which weren't official. Most of the Sawmill and Grand Groups, for example. Thhe only official names were Grand Geyser, Turban Geyser, Sawmill Geyser, Spasmodic Geyser and Tardy Geyser and Bulger Spring.

So I decided that all those names should get the official treatment. I threw in Link Geyser just because a big geyser like that needed to have its name be nailed down, too.

I proposed fifteen names in total. Twelve were successful, one got changed slightly and two didn't make it.

  • Belgian Pool
  • Bulger Geyser (rename from Bulger Spring)
  • Churn Geyser
  • Crystal Geyser
  • East Triplet Geyser
  • Link Geyser
  • Old Tardy Geyser
  • Oval Spring
  • Penta Geyser
  • Percolator
  • Rift Geyser
  • Slurp Geyser
  • Uncertain Geyser
  • Vent Geyser
  • West Triplet Geyser

I proposed "Percolator", without the "Geyser" suffix because having every name ending in "Geyser" or "Spring" or "Pool" gets tiresome and repetitive. Here was an opportunity to do something different. Unfortunately, one of the reviewers noticed this and commented on it. Rather than fighting for the proposed name, I amended the submission to include "Geyser".

The two names that didn't make it were "Slurp Geyser" and "Crystal Geyser". Another reviewer objected to Slurp because the name "Crystal Springs Satellite Geyser"* was an alternate name, and this person didn't see a need for a change. And of course, that name is dependent on not changing Crystal Spring to Crystal Geyser, so that name needed to stay the same, too. Again, instead of fighting for those changes with someone who showed signs of insisting on those names, I just withdrew the proposals.

I've since learned that proposing geyser names like this will not be accepted. Not sure why, don't really care. Since, other than Slurp, I got all my names through. Although, I do regret not getting Plume Geyser and Morning Geyser made official, or getting Dragon Geyser changed to Aurum Geyser. Maybe I was thinking of saving them for a round two.


* Note: It is USBGN policy to not include apostrophes in names, which makes this name even more ungainly.)


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Recording Geyser Activity in 1993


I was digging around recently looking for some old geyser data when I came across something that might be of general interest.

Back in 1993 I was working with Rick Hutchinson on recording geyser activity. He let me use some of the TempMentor devices, and I wrote a Mac application so I could access and download and display the data. The TempMentor that I used was inside a self-contained cylinder, about a foot high and about four inches across that provided a waterproof place for the recorder. The sensor itself was in the bottom of the cylinder, so I had to place it directly in the runoff channel of the feature I wanted to record. Fortunately, even back then there was enough space under the boardwalks that I could easily place it, even during the daytime. (When the boardwalks were rebuilt, they were raised, mostly to prevent them from continuing to provide marmot and tree-rat habitat.)

I placed the devices at Grand, West Triplet, and Plume. I also have Castle data, but I think that was from a device Rick placed, as even back then we were not encouraged to go that far off trail.

I still have the data I collected, but it's in a format that I would have to reconstruct. Fortunately, part of the program that I wrote did some processing to look for eruptions. That's what I came across, and it's interesting to look at now, 28 years later. I've attached the text files to this posting, as they are a bit too big to just add as is.

Plume runs from 09 Jul 1993 through 12 Aug 1993, without any gaps in coverage. During that time not only was Plume "going to sleep" but there were also a couple of Giantess eruptions. So the data shows not only the overnight pauses in activity, but the shortened intervals in response to Giantess' eruption. Most of the non-Giantess eruption intervals were around an hour, but in the 36 or so hours afterward, that interval dropped in half.

Most of the time Plume went to sleep around midnight, and woke up around noon, so many of the sleeps were in the twelve hour range, But there are also some that lasted the better part of a day (19 hours in one case). The recovery from Giantess mode was pretty abrupt, too. In one case it there were just four transition intervals before it was back into the hour range. In the other case, there were just three, and then it went to sleep two more intervals later.

West Triplet was also interesting. I moved the Plume recorder there so there's a record from 13 Aug 1993 through 15 Sep 1993. I noted the Rift times in the file, but not sure how/where I got them. Sam Martinez was also doing some recording, and he may have been the source. In any case, the recordings clearly show that the West Triplet eruptions that preceded Rift lasted longer and Rift started about 1/2 hour in (at the time West Triplet would have normally quit.)

Grand activity is in several segments. The first runs from 09 Apr 1993 through 10 Jun 1993, while the second is from 04 Jul 1993 through 15 Sep 1993. The shortest intervals were just under seven hours, while there were no intervals over 12 hours. For back then, that was nice, consistent behavior for it.

Finally, Castle runs from 21 Aug 1993 through 11 Sep 1993. During that time most intervals were eleven hours, give or take. There were one to three minor eruptions a week, and several major eruption intervals between them. The intervals after the minor eruption varied from three to seven hours, and the major eruption interval after that was about an hour longer than usual.


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GeyserGaming and GeyserTwitter


Now that the Wuhan Bat Cooties panic is going the way of tulipmania, those who didn't visit the park last year are returning and determined to pickup where they left off. Last year's geyser gazing was nice and quiet for the most part, because there wasn't the usual competition to be the center of attention. ("Switch to five" was not the most frequent heard radio phrase, for example.)

This year it seems that people are determined to turn GeyserTimes into a form of Twitter, and to treat their observations as some sort of GeyserGame, where the goal is not to report accurate and useful information, but to be First! to report every big geyser, and to add their opinions on every obscure geyser and spring whose name they just learned last week. Do all that enough times, and it appears people think you get to level up to Geyser Guru.

Worse, some seem to think of their reports as a substitute for Twitter. We are seeing more and more reports of non-geyser animal encounters and other such incidents which should have no place in a database of geyser activity. Or they are using it to report the status of a geyser because there are no other easy places to let people know that something didn't erupt overnight or in the last hour. Reporting "Bijou ie" used to be a joke told while sitting at Grand. Now we have people logging it without any context, which makes it is just noise. And we don't need half a dozen people to "confirm" an eruption of Beehive in the middle of the day. Or a comment on every Fountain eruption about how this one is the most beautiful eruption ever.

The offenders aren't just new people, where ignorance would be a plausible excuse. Long time contributors can be some of the worst offenders. Exploiting bugs in the database software to be First!, for example, or using the database as a substitute for a written logbook or for weblog postings. (By the way, why exactly is it critically important to shout out on the radio a geyser the second it starts, when the eruption only gets logged to the minute?)

GeyserTimes does have a detailed page laying out "how" to report activity. It's hidden away. But what it doesn't have are pages on "what" and "why". What should be reported and what shouldn't be reported, and why you should or should not report something you see.

Another big problem is that the owners of GeyserTimes seem unwilling or unable to enforce any standards. There's no evidence that they are attempting to keep people focused on the purpose of the database.

If you do object to some of the more egregious entries by using the only feedback method available to users, the owners will call you "an ass", but not to your face. When called on this, they hide behind "decisions of the team" to never respond, demonstrating an unwillingness to deal with problems on their site. They also seem to be unable or unwilling to answer inquiries about using the database from an application, or reports of website bugs, so their lack of communication seems to be a systemic problem. So much for encouraging communications.

Solutions? First, better communications between the GeyserTimes owners and their users would help a lot. Answer those emails, and provide a way for users to directly inform observers of problems. Admit that the database gets enough use that there needs to be active administration to catch problematic reports before they sit there for hours uncorrected.

But there could be more. Perhaps the owners of GeyserTimes, or maybe GOSA, should put in the effort to setup moderated forum(s) for people to discuss the activity they see, and a place to report the status of various features, independent of the database. A place where those who really care if Tilt's "Baby" is empty recently can quickly see what others have reported. A place for "unattended" reports from Fan & Mortar. The same for reports for New Crater/Steamboat, now that it has reverted to 1980s mode. A place that will be useful when Giant reactivates, in reporting Grotto marathon status and Bijou pauses. A place for reporting non-geyser incidents and activities. In other words, a place for ephemera that is inappropriate for a permanent database. There seems to be a demonstrated demand for it.

Another solution would be to separate out the GeyserGaming aspect, and give the GeyserGamers what they want. Create separate apps whose purpose is to pander to the GeyserGamers who only care about reporting what they see. Give these entries lesser precedence over those entries from observers actually including observations, until they "level up" enough to be trustworthy. (An example of the difference is that GeyserGamers can't be bothered to put in a duration or height estimate. Doing that would require either waiting until the eruption is over to submit the entry, or to go back in and edit/update the entry.)

In the late 1980s I worked up a "geyser rating system" where I tried to apply objective criteria (duration, interval, height) in ranking geysers. It was mostly successful, with a few weirdnesses. (For example, Old Faithful and Uncertain came out similarly ranked.) Recently I tried updating this, adding some other criteria like accessibility. I might post that information later, in case anyone is interested in stealing this idea and actually implementing it. One problem with any such system is that ratings would change often, as dormancy is a large factor in scoring.

The GeyserGame could also be a paid addon to the GeyserTimes app(s) where the proceeds can be used to compensate the needed moderators and administrators. Or allow a few submissions for free, but you gotta pay for unlimited access. (And paying should count toward scoring, or at least provide evidence that the observer is serious in reporting.)