I'm not sure you mean by cities when talking about the Carrizo Plain.
New Cuyama, Maricopa, & Taft? I wouldn't really call them cities.
I've led multiple geologic field trips on the Carrizo over the past 20 years and can't ever think of an instance when I've come across more than a dozen people.
The only time that the Carrizo see's a massive influx of humanity is during wildflower season in the spring. If the predicted El Nino lives up to expectation this season, it will be off the hook on the plain.
You could head-up into the near-by Sierra Madres (Mt. Pinos), though there is a chance (20%-30%) of rain Tues & Weds. Snow down to 2,500' is possible. Plenty of room to camp anywhere in the Los Padres NF. Mount Pinos is the highest peak (8,800') in Ventura County and is the highest peak in the Transverse Ranges west of Cajon Pass.I think you'd have the place to yourself cause it will be darn cold (low to mid 20's).
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