Mammoth Accident and Geology

TWoods

Active member
Staff member
I live near mammoth, this is the most recent.

As you have read, 12 people injured, 3 dead, 1 more in critical condition.

Evidently, 4 patrollers were skiing down to set up gates around the chair three "stinkpot" or "stinkhole." Because of the location there is about 20 feet of snow there right now. The heat of the fumarole and the wind, a large cave had formed under the snow. As the patrollers approached, 2 fell through the collapsed roof. They were the first 2 casualties. An older patroller went to try to help them. He was not dead on scene, but died later at the hospital. The 4th patroller... I don't know his story, but he is in critical condition.

The cave rescue specialists had to be called in to handle this. I believe several of them were injured, but most of the other injuries were from other patrollers during th rescue attept. I'm not sure on the details of the rest.

Tomorrow morning, there will be a meeting with the entirety of the ski patrol. If they don't beleive that they can handle their jobs, the mountain will be shut down until they decide to come back to work. With all the new snow (6 feet), patrollers are very important, and the mountain can't operate without them. Kudos to mountain management for letting them decide if they need to be with their families tomorrow.

Someone who was there wrote this on the mammoth forums... I hate some people:

"You know one of the worst things I've seen was the 'guest's' reaction to this tragedy today. The lack of compassion was astronomical. Rumours were insane. People taking pictures, one guy overheard saying "they probably deserved it, they were probably in the wrong place," the one who complained that a patroller was rude and unsympathetic when he asked why chair 5 wasn't running, and don't forget those who came into the lodges to ask for refunds because we closed the chairs over "just some patrollers, that's not a good enough reason." Didn't even seem to register with them that chairs are closed for...yes the GUEST's safety, though I could care less about that when I heard and witnessed those incidents today. How can people be so heartless? To be so cruel when lives of our friends are lost, because it is an inconvenience to their vacation. Sickening"

As for the geology, I took some classes on this.

about 700,000 years ago, there was a huge volcano that collapsed to form the Long Valley Caldera.

Mammoth Mountain, if I remember right, is a dormant volcano made up of about 12 domes, extruded along the rim of Long Valley caldera from about 200,000 years ago

Here is a crappy picture of the thing. There are acutally various openings and cracks, and usually a fair amount of steam coming out of it. This is only a small bit of it:

mmf_big.jpg


if you want more info on the vent, you can go here:

http://lvo.wr.usgs.gov/mmf_main.htm
 
that is fucking insane. My thoughts are with the friends and families of the patrollers who made the ultimate sacrifice in order to keep the mountain safe.
 
thats so crazy. i feel so bad reading about this stuff. they were doing their jobs and that happens. RIP. i hope the best for the families and if the mountain is not safe. i feel they should close it. safety is number one no matter what, thats what i feel.
 
damn, that is tragic...I want to fast forward to summer now with all these untimely deaths that seem to never stop happening. And fuck tourists who don't know shit about a ski mountain...they deserve the karma shots there gonna get for their actions and words and uncompassionate ways...we can all thank "big city life" for making people like that.
 
wow, youre a fucking idiot.

"our planet is getting so whack lately"- try for the the last FOUR BILLION YEARS. You dont mean shit to the earth, youre not even a nanosecond compare to this earth.

youre just another typical dumbass midwesterner that thinks they know everything about geology even though you just sit right in a HUUUUGE slab of sandstone called the midwest.

fuck off and dont open your mouth again. god that was the dumbest thing i think ive ever heard anyone say on this site, hands down.
 
mammoth is a gnarly mountain with consequences always looming, even in inbounds terrain. this incident is a shock indeed.
 
fuckin stupid gapers! those people who complained about thier vacation being ruined SUCK AT LIFE! I had ignorant beaters skiing out mountains, I need a season pass only resort...
 
thats a really crazy tragedy....i never thought i would read something like that...and i never knew about volcanic gasses around mammoth?? thats wierd
 
thats insane...i wonder what will happen to mammoth if theyll have to close down certain sides of the hill or what. rip for the patrolers
 
Yea, Mammoth is completly open still, the fumarole looks like a foreign border with 2 lines of fencing all the way around it.

I found a video of the thing from a year back or so, let me go find it again real quick
 
There are a lot of places where there are steam vents and fumaroles

a lot of the town's power comes from a geothermal plant.

you can see the plant and one of the larger vents here:

MPLPfromhill.jpg


also, there are other vents on the mountain

there are a few areas where there are depressions where the actual vent hav caved in and is not really active anymore, but CO2 still leaks out of the ground, killing trees. one of them is by chair 12 another by chair 11 (although some say that the depression there is just to hold water in the summer)

there are also spots on the paranoids that are warm. almost any time you go up ther in the winter you can find cracks and holes along hte ridge where snow has melted. It can be really bad in the spring, because the snow gets huge cracks in it, and on top of that, the melted snow undercuts the snow on top. Sometimes there can be really large fractures.

All over the caldera area, there are places where gas leaking up from the ground kills trees.

this is a little map. The fumarole labeled "MMF" is the one on the mountain.

treekilb.jpg


Treekill.jpg


MMtn_500.jpg
 
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