ARRL – arrl.org
In the ARRL Pacific Division – pacific.arrl.org
Sacramento Valley Section includes the counties of Sacramento, Amador, Alpine, Yolo, Sutter, Placer, El Dorado, Colusa, Yuba, Nevada, Glenn, Butte, Sierra, Plumas, Tehama, Trinity, Shasta, Lassen, Siskiyou and Modoc
