There's more restrictions on the Western WA and Oregon federal forests. There is virtually no logging here, on the FEDERAL forests from March 1 to July 1. That is owl nesting season and most of the forest is considered to be Spotted Owl habitat.
The economy is another factor. There is some logging going on but not as much as a couple of years ago. Private landowners are holding out for better timber prices.
However, I'm seeing plenty of log trucks heading to our mills and as long as they are going, there should be some logging operations somewhere.
It is hard to tell you where to go see any without knowing when you'd be out here. Like Cedarkerf said, if we get a lot of snow, which is predicted, that will slow down operations also.
There is protocol to follow, mainly courtesy. You should contact a logging person/company and ask if it would be OK, learn the rules of driving on a log truck route, and like you said, stay out of the way if they let you go. The latter could be hard because room on landings is limited and you have some big machinery working in a confined area. Parking is very limited. The roads can be rough, muddy, snowy, and steep. They are usually one lane wide with turnouts here and there. How are you backing up skills?
Your best bet would be to wait until there's something going on the public land because the roads usually stay open to everybody, although there'll be scary signs like TRUCKS, TIMBER FALLING AHEAD, and sometimes the old LINES ACROSS ROAD.
Old Growth? Why don't you know we cut it all?
Nah, there's bits here and there. The Olympic has a lot. We have the Big Tree area and other patches/hillsides around. I think this area has the world record Noble Fir, which I thought was logged but wasn't.
Don't expect to see the volcanoes until July, August, and September. The main road to Mt. St. Helens doesn't get plowed until the last week of June. Those are the driest months.
Are you driving here? I came back via US 2 and it was enjoyable. Wal Mart isn't open in N. Dakota until afternoon on Sundays!