Belmont Shores Model Railroad Club

N - San Pedro

N-Land Pacific Model Railroad Club

N - Upland

Antelope Valley Model Railroad Club

HO - Lancaster

California Southern Model Railroad Club

HO - Norwalk

Glendale Model Railroad Club

HO - Glendale

Highland Pacific Model Railroad Club

HO - Highland Park

Los Angeles Model Railroad Society

HO - Hawthorne

Pasadena Model Railroad Club Inc.

HO - Los Angeles

20's and 30's HO Modular RR Club

HO Los Angeles Area

Pomona Valley Model Railroad Club

HO - Pomona

San Diego Model Railroad Museum

N, HO & O Clubs - Balboa Park - San Diego

Santa Susanna Model Railroad Club

HO - Simi Valley

Angels Gate Hi-Railers Model Railroad Club

O - San Pedro

Los Angeles Live Steamers Railroad Museum

7.5" Gauge - Griffith Park - Los Angeles

Southern California Live Steamers

7.5" Gauge - Wilson Park - Torrance

Orange County Model Engineers

7.5" Gauge - Costa Mesa