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Local 364's jurisdiction covers over 27,000 square miles and includes the Eastern portions of San Bernardino and Riverside Counties and Edwards Air Force Base in its entirety. The western border is a north/south line based in the center of Etiwanda Avenue in Rancho Cucamonga which emanates on the South at the Orange County Border and the North at a perpendicular line emanating easterly from Mt. Baldy.
See the red area outlined on the California map below for reference.
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