The Chron has a better map of Los Pueblecitos
There’s a better map of "Los Pueblecitos" at SF Gate. It’s much better than the hand-drawn one that accompanies the petition. It makes clear something that I missed in my original story: the town would be bordered on the east by either Highway 280 or Highway 35 from roughly north of Highway 92, including the Crystal Springs Reservoir.
It amplifies the important point that the town would incorporate (in both senses of the word) a vast amount of land that is not so much rural as it is uninhabited.