These trees, probably Utah junipers, are abundant on the south rim of the Grand Canyon. They have strange twisted barkless trunks and many of them recline like this instead of standing upright. I don't know how they came into such a shape, but they seem to be completely healthy otherwise.
Thanks a lot to everyone who commented on my photos, or even stopped by for a visit. The comments have been pouring in pretty fast and I'm finding it increasingly difficult to reply to each individually. I'd rather spend that time in viewing others' photos and commenting there. But I do read each comment individually, and if you ask me something specific, I'll answer that.