California county routes in zone A

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California county routes in zone A
Example of a California county route shield
Highway names
County	County Route X (CR X) or Route X
System links
County routes in California

There are 28 routes assigned to the "A" zone of the California Route Marker Program, which designates county routes in California. The "A" zone includes county highways in Lassen, Plumas, Shasta, Siskiyou, and Tehama counties.