First light in North Las Vegas comes in level and low, throwing the shadows of Craig Ranch's old ranch trees clear across the grass before anyone else is out. Prisma Lawn Service likes that hour, when the air is still and a mower deck sounds like the only machine in the county. The passes go down straight, the edges get cut along the concrete, and the clippings are blown clean off the walks and back into the turf where they belong. Two hours later the heat arrives and the neighborhood wakes up to yards already squared away. Starting before the valley does is half of what makes the finish look effortless.