The deepest fact about this place is a mismatch: the air and the ground want far more water than the sky ever delivers. A desert is not defined by low rain alone but by evaporation greatly outrunning it, the atmosphere's drying power exceeding its water supply, so that open water and damp soil are pulled away faster than they are replaced. Supply low, demand high, and the gap between them is the whole condition of the country.
Both sides of that gap have a cause. The rain shadow thins the supply, wringing the Pacific storms out over the mountains to the west so little reaches this side. And the same descending, reheated air that arrives here is thirsty, hot and dry and hungry for moisture, which raises the demand, so it evaporates water out of the soil, the plants, an open stock tank, and your skin. The land is dry because the sky gives little and the air takes much.
Evaporation is not only a taker, though; it is also a builder, and that is the part people miss. When water leaves as vapor it leaves its dissolved minerals behind, so evaporation is the hand that concentrates them. It is what pulls calcium up and deposits it as the caliche hardpan, what crusts a dry lakebed with salt, and what grows the glassy desert-rose crystals out of drying ground. What the water abandons, the desert keeps.
There is one image that holds the whole idea: the last shrinking puddle in a bowl of cracked, curling clay, its moisture wisping off into the air as it dries. That is evaporation and drought made visible in one small scene, the water leaving and the ground splitting behind it.
This single fact organizes the rest of the place. The thin humidity, the hard clean sky, the heavy sun, the wide day-to-night swing, and the entire design of desert life, the water-storing plants and the burrowing, night-moving animals, all follow from evaporation outrunning rain. On a homestead it becomes the plainest rule of all: water hauled and never wasted.
Read the cracked clay and the salt crust. They are the signature of a place that dries faster than it wets.