...part of the YKK mountain range perhaps...

Ooooh, I like this. I'm not a geologist, but I took a semester of geology and so that makes me an expert right? Well, anyway, I think this might be bassalt...which is just a fancy way of saying zipper rock. I like your name better. If you're at the right distance, it looks like "cat scratch" rock too...which is always what I thought of whenever I saw it...well...photos of it. Anyway. I really like this shot. The sense of hugeness is really prominent. Good use of light too. I like the name for this as well. Zipper Rocks is so descriptive and it fits. Judging by the size of those trees, it's a long way up which makes this rock formation into what in scientific circles is called a whopper.

very cool capture of the Basalt formation! This reminds me of the formations along the Columbia River Gorge (both sides)

Very cool basalt formation. Good choice to include the trees at the top to provide a sense of scale.

Brilliant pic and title! It's a denuded volcanic plug, great to see the basalt so clearly. I wish we had had this sort of photo when I did my A levels.

I seen a similar formation some where in Utah

Fabulous lighting effects in this stunning pic of the arcane rock formation, with what I would deem vertical striations, Maz. What is most interesting is that narrow strap of whatever encircling the rock at the top. That is oddsville. And, how does Chipka find time to come up with his now famous novellas?

Ok, several people knew off the bat that this was basalt. I wasn't even sure it was rock! It could be one of those huge chunks of chocolate that someone cracked a piece off of. Or a cat-scratching board, as Chip says. Or a really heavy layer cake. It's a beautiful formation, and amazing how everything is stratified on top of everything else---layers in a big geologic casserole. Again, you've given only a small piece of sky (as in those Oregon Gorge shots), so this is mostly the big thrusting face of this formation---good choice, Marilyn. And the greatest light is at the bottom (not top), in those glowing yellow-green trees. As for the name "zipper rock," remember the film "Young Frankenstein" (Mel Brooks), where Madeline Kahn calls Frankenstein "old Zipper Neck"? It could work. A fine way to frame and capture this big front-face chunk of earth, Marilyn. Harry's right that it's arcane. It feels prehistoric, but then geologically it's way prehistoric, so that would fit.

To me it says big upward movement; great capture!

I love those columns. It's much like Devils Rock. Terrific!