They live in the National Park, but they rarely come around to the inhabited part of town here. To give you some idea, I’ve been visiting or living in Joshua Tree for 33 years, and I’ve never seen one.
I still haven’t, but my partner gets up before I do most mornings, and they were out on the front porch when it was still dark, and heard a loud bleating. It was coming from maybe 20 feet away. It was a Bighorn looking for a lost lamb (that’s what they’re usually doing when they bleat like that). It continued on across the street into an empty lot, then got scared off.
Pretty impressive. I wish I would have been awake for that.