PCT 2018 Day 23, May 15, Tuesday.
Start mile 519.2, stealth camp near aqueduct
End mile 553.9, campsite
Miles walked: 34.7
A cold morning begins walking along more open aqueduct, then turns direction and becomes aqueduct enclosed in a huge diameter metal pipe, partially exposed above ground. 
Later, after several miles, the pipe is completely buried under a thin slab of concrete and continues across the valley floor up to mountains on the other side. 
The air quickly warms as the sun gets higher, very hot indeed. Joshua Tree and creosote bush grow on bare sandy soil. 
The trail passes by a wind farm, with larger wind turbines than we had seen before. 
Reaching and climbing the mountains on the other side, some elevation brings temperature relief. 
I resist making a dad joke about the PCT Association installing huge fans to cool hikers. Looking back, beyond the ridge in the foreground, one can view the desert valley floor and mountains on the other side, to see how much Mojave Desert we crossed today. 
I camp near others on a high ridge near more wind turbines, and can hear the soft whoosh when they start and stop during the night. 
Chatted with hikers Big Sky, Nutella, and Mister Giggles today.
Finished audiobook The Sea Hawk, by Rafael Sabatini.
Dad joke, indeed.