Ways I found water in the desert.
I would lie down and watch for insects flying. I would take note of whether they were flying straight or just sort of puttering around. Only pay attention to the straight flyer's, and notice which way they are flying. Follow them. they will usually lead you to mountains, hills, or at least a pile of rocks. Keep following them. As you go there also look for tracks of other animals, deer, sheep, coyotes, bob cats, mice, they all need water. The water they have to have is somewhere in the area. Now it might be just a hollowed out place in a rock, back under a cliff, big rock, someplace the sun does not hit. The water might be what is left over from the last rain months ago. Or it could be just a crack in the rock where a little moisture seeps out and collects. Have even found small caves with a small trickle of water running out of the rocks, then disappearing just a few feet away.
One day out on the west side of the White Tanks, west of Glendale Arizonia. I let Charro my horse loose so he could roll in the sand. Charro had sucked all the water up out of a little depression up in the rocks behind camp. I knew it would be an hour or more before it refilled. After a while I noticed Charro pawing the ground out in a low spot between the rocky outcroppings. At first the sand just flew from his foot, then I noticed it was clumpy, and sticking to his foot. I got out my camp shovel and went down there. The sand was wet down in the hole he had dug. I realized Charro could smell water. As I dug the hole down to about 8 inches, water started seeping into the hole. I continued to dig down about two feet, and water came up to within 8 inches of the top of the hole. This was all the water Charro needed. After he drank I refilled my water jugs and covered the hole with a tarp. The next day when I left I refilled the hole and left a stick sticking up there to mark the location for future use.
As I rode away I took a good look at the area. The rocks we were in sort of made a circle, with this sand filled hole in the middle. If you could envision the rocks going below the sand, you could look at their contours and envision how they made a big bowl that held water just below the sand. The next time Charro and I went out there we took a bigger shovel.