Railroads (WA)
From The RadioReference Wiki
Snohomish/King/Chelan/Douglas Counties use 161.100 (AAR 66) on the BNSF main dispatch channel as 'Seattle East' (BNSF Scenic Sub/Columbia River Sub)
Snohomish/King/Skagit/Whatcom counties use 161.250 (AAR 76) on the BNSF main dispatch channel as 'North Branch' (BNSF Scenic Sub to MP 32 and Bellingham Sub, to just over the Canadian border)