California county routes in zone A
California County Routes in zone A

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.
A1
County Route A1 (CR A1), more commonly known as Route of the Olympic Torch, is a 35.3-mile (56.8 km) county route in Lassen County, California, United States. It gained its name as a result of being used for a portion of the 1984 Summer Olympics torch relay.
County Route A1 runs from Route 36 near Susanville to Route 139 near Eagle Lake. It was originally named Eagle Lake Road.
This route still exists as a bypass from Susanville for north–south motorists, but it is no longer signed as such.
Major junctions
The entire route is in Lassen County.
A2
County Route A2 (CR A2), known entirely as Susanville Road, is a county route in Lassen County, California, United States, connecting SR 299 to SR 139.
Major junctions
The entire route is in Lassen County.
The public source identifies “California county routes in zone A” as california County Routes in zone A. This brief keeps that definition visible, then builds a research path around California, county and routes.
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The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Jan 18, 2026. The linked authority identifier is Q795506. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1984.
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This entry incorporates text from “California county routes in zone A” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.