Actually, Fidalgo Island is NOT part of the San Juan Archipelago, so not one of the San Juan Islands. All the San Juan Islands are encompassed in San Juan County as per the USGS. Fidalgo Island is Skagit County. Btw, I am a proud resident of San Juan Island.
@@carmenw.9617 Good to know. But it remains true, that Anacortes isn't on the mainland, but on Fidalgo Island. I'm not going to do the research, but I suspect those islands were formed from the same geologic processes, no matter our arbitrary naming/labels. Including Canada's 'Gulf Islands'.