I don't know where it comes from that F&W will not admit there are grizzlies in Washington. I have had them tell me about them and where. One place in the NE corner they said they had numerous radio collar signals. The bears do drift back and forth between Idaho and Canada along the border, but I have been told there are resident bears. The number isn't great but they are out there.
In the late 90's a young grizzly was videoed just north of Deer Park. Rumor has it that it was poached. There are always many more rumors than facts.It is no fun saying I saw a large Black bear, always more exciting to say it might have been a grizzly. The next person says it was a grizzly.