California has 5 regions with 1, 6, 4, 4, 5 stations each.
See combined Topo Map.
Region 1: Las Vegas
36.2, -115.16 Las Vegas
Region 2: San Diego, Barstow, Riverside, Santa Ana, Los Angeles, Santa Barbara
32.88, -116.95 San Diego 34.86, -117.06 Barstow 33.98, -117.35 Riverside 33.75, -117.86 Santa Ana 34, -118.25 Los Angeles 34.43, -119.73 Santa Barbara
Region 3: Sequoia, Bakersfield, Fresno, San Luis Obispo
36.56, -118.61 Sequoia 35.38, -119 Bakersfield 36.71, -119.78 Fresno 35.3, -120.66 San Luis Obispo
Region 4: Reno, Lassen Peak, Mt Shasta, Eureka
39.53, -119.81 Reno 40.5, -121.53 Lassen Peak 41.3, -122.28 Mt Shasta 40.75, -124.16 Eureka
Region 5: Stockton, Sacramento, Monterey, San Jose, San Fransisco
37.93, -121.26 Stockton 38.58, -121.5 Sacramento 36.6, -121.88 Monterey 37.33, -121.9 San Jose 37.75, -122.43 San Fransisco