That is a cornsnake. Nonpoisonous and eats things like rodents...
There are supposedly timber rattlers in the area but I have never seen one. Copperheads yes, but not often. Never start moving a rock or wood pile that has been there for a while unless you have on long sleeves and gloves.. ;-)
Most often spotted snake here is the common Garter Snake. I often see them ‘running’ away after I have mowed over their hiding spot in the tall advanced grass substitute..
Having spent most of my childhood in the high desert, we were taught never to step over a log or a large rock, but to walk around it or dislodge it, first. I’m not necessarily “afraid” of snakes, and have been known to handle them, but I have a healthy respect for anything in the wild. I prefer to give all critters a wide berth, so they can do what it is that they do so well. :o]
And because of the real danger of ticks in the sagebrush and scrub oak, it was always long sleeves and long pants. We spent our summer scrambling around in the foothills and canyons.