PCT 2018 Day 3, April 25, Wednesday.
Start Burnt Ranch Campground, mile 41.5
End mile 72, a few miles to a water cache
Miles walked: 30.5
After an early start, a mountain vista appears while walking on Mount Laguna.
The trail will end up going over many of these peaks by end of day. The pathway uses a old roadbed for a while, level or slight grade descending, with views every step. A trail angel left oranges and grapefruit as a refreshing treat. 
I keep moving while others take a break from the sun. Water sources are becoming infrequent, so it seems better to press on and get closes to the next source. The mountains ahead suddenly look dry. 
Spoiler alert: they are.
In a few hours I am among them, shrubs thinning out, with grasses in between, some bare ground, and also cacti.
My cell phone is confused, and cannot connect to any tower. A similar thing happened on the CDT. Perhaps I can fix it with a wifi connection. I am hiking a long couple of days to get to the next resupply, that might have internet.
Boulders thinning out, shrubs thick and thriving, and now in forest at the campground. In this area within the Laguna Mountain Recreation Area, camping must be in a campground. No sites are reserved for PCT, but groups of up to 8 people rent sites together. I ended walking just past 4PM because the next campground was a few miles away. I did try taking a break today around 1PM to escape the sun. Starting back again, my body had stiffened up.
We walk a short distance to the border and start of the trail. 
Fools gold specks sparkle in the dirt of the pathway. The terrain is rounded granite boulders with a thick planting of shrubs and a few scattered trees. The temperature is a challenge, and I pass many scattered clumps of hikers taking a break from the heat of the afternoon, taking refuge in shady nooks along the side of a mountain. Water sources are infrequent, so I press on to Morena Lake campground, with faucets and even a shower. I overhear several hikers who ran short of water and had trouble with the heat.