I wrongly assumed that this preserve was just a flat sandy desert, but it is a varied terrain of mountains, mesas, canyons, and volcanic landscapes, in addition to sand dunes.

The Rings Loop Trail pictured, near the Hole-in-the-Wall visitor center, goes right through a canyon with Swiss-cheese holes in the walls. There are petroglyphs to see, fascinating views, and short ladders of iron rings to climb.

A couple of retired campers asked me about my long range Tesla 3. The recent spike in gas prices ($7 in California) interests people who regularly spend over $100 to fill their tanks. Of course it’s also a very fun car to drive with a low center of gravity and instant acceleration. But too many folks resist change, even when their carbon travel habits contribute to devastating change.

Click to see my photos of all national park units in California.