Oh great, I've actually been there and saw two bighorn sheep near the "oasis" that is not too far from the visitor center. It was super hot there, actually (42°C or so?). Probably my most extreme heat exposure ever.

Thanks! I hope they don’t do this in the summer. Pretty hot there.

The best time is the summer; the hotter the better. These sheep can go for weeks without water when it's cool. When it's hot, they need to come to water every 3 days or so. So, when it's hot, we set up shop near the watering holes and wait.

Very interesting and makes sense. I guess the heat is not too bad if you don’t have to move a lot. Is there a lot of action at night? I would probably set up some trail cameras.