Lengthy hike to Supernova Pictograph site near the end of the trail. Trail is generally sand and dirt without much elevation gain until near the end of the trail. It is out and back. Hardly any traffic after the first two miles. I went in the early afternoon and it was quite warm, even in early May. You will want to take plenty of water and some trail food, of course. There is no cell service generally anywhere within the Park so you must take care of yourself out there. The trail is well marked and easy to follow. Not much wildlife but I did see some coyote scat, some birds, a couple of lizards and one large snake.