After fueling up in Gila Bend we headed west again on I-8. I don't know why, but yesterday we just got crazy fuel mileage. I keep pretty close track while driving, and for some reason, the exhaust gas temperatures were staying low all day, maybe a tailwind? For what ever reason, when I divided it out, I got 66.5 miles per gallon -- yikes! It could be that the fuel I bought yesterday was my first tankful that was not "winter diesel", I don't know, but I like it! The first wondrous sight of day appeared north of the interstate, maybe half way to Yuma. The ground there in the distance seemed to be covered by huge, square areas of odd black ground, each of them covering tens of acres. As we drew near I could
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