would dogs be allowed here?

I dont know but the sculptures are pretty much on the side of the road and in the open desert. If I had to guess, i would say yes, just keep them on a dog leash and you should be okay.

Yes, it is an open space but be careful because I gets very hot summer time.

I'd say yes. Open space and I've seen dogs with people there in the past. Actually think the land is privately owned and is not a governmental park of any kind

yes, is open Space