I saw that Death Valley "ventifact" last Saturday
I went to the park over the weekend to catch the wildflowers and saw that rock right beside the road. I pulled the car over to look at it - about 4 feet tall, very interesting-looking.
I didn't see any other similar rocks, though, which makes me wonder if it's truly a ventifact or some weird igneous/lava rock. I clearly don't know what I'm talking about though, so I defer to our HZ geologists.
Death Valley is a beautiful place for wildflowers or geology, if you ever get a chance to visit.
Ending digression now...