Originally Posted by Peter Zack
I like the second shot and how it shows the event. It would make a good B&W I think. Well done.
Thanks Peter - I may yet give one in the series the B&W treatment...
Originally Posted by daacon
very cool would have been quite a site to see it happen. I wonder if it happened at the same time.
No kidding! My guess is that something in the flame exposure, or something in the growth history of the trees caused them to have weaknesses at about the same spot, and then one wind event took all four trees down, but who knows???

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Originally Posted by mwcfire
The ground looks like old asphalt.

It's a big swath of sand

, and based on the volcanic nature of everything else in the area, I'd guess it's pyroclastic in origin (not that I know anything about geology though).
Here are some more shots from about 1/4 mile away...