Fortress High Route?

what's your intended route? one can travel from the Chiwawa River valley north to the pass between Fortress and Chiwawa and down to the headwaters of Miners Creek. Are you referring to what's usually called the Massie Lake High Route? There appears to be info about that route

My Cascade Alpine guide mentions by name a Fortress high route, and references Routes and Rocks, which I do not have. This route goes from the upper headwaters of the Chiwawa, at bout 6700', west, skirting the southern flanks of Chiwawa and Fortress and heads towards Buck creek pass. The big picture is a hike around Glacier peak, up the Napeequa and then east towards Lucerne via Spider glacier and Icy lakes. I would like to avoid the northern trail route as I would have already crossed that terrain, and not have to go low to the south. This might be unavoidable if the terrain is too rough, but it is a great connecting line in theory.