California County Routes in zone A
There are 27 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, more commonly known as Route of the Olympic Torch, is a 35.3-mile (56.8 km) county route in Lassen County, California.
County Route A1 runs from Route 36 near Susanville to Route 139 near Eagle Lake. It was originally named Eagle Lake Road.
Major Junctions
The entire route is in Lassen County.
A2
County Route A2 is a county route located in Lassen County, connecting SR 299 and SR 139.
A3
County Route A3 or Standish–Buntingville Road is a road in Lassen County connected to U.S. Route 395, and functions as a bypass for northbound traffic around Susanville. At its northern end it is signed for Reno (via US 395), and its southern end for Lakeview, also via US 395.
A5
County Route A5 or Bowman Road is a road in Tehama County connecting State Route 36 in Rosewood and I-5 in Cottonwood