In Lane County, the National Forests are about the same acreage as the industrial corporate timberland.  


Some of the designated "wilderness" is high elevation land that has little to no forest on it.  Rock and ice looks pretty, but it's the low elevation forest that is most productive.  I've never heard anyone say "all" of the old growth has been logged.  Most of it, yes.  Oregon's coast range might have a percent or two left, but most is in tiny disconnected segments.  The Cascades have a bit higher percentage, but most is middle to high elevation, not the low lands.