Sort:  

Nice! I had not heard of them before my friend suggested we go, so I didn't know what to expect but they were really interesting. Did you get a chance to get up close to some of them? The ones I saw almost reminded me of old weathered concrete. I normally try to avoid swapping lenses in the desert but I couldn't not get a closeup of that :)

Not super close, but there are some in California that we would pass by on our trips toward the coast, I think highway 20, but that was a it ago. We always meant to take a detour and get closer, but we just never found the time.