One lookout is missing:
There is a lookout (that was still standing in 2005) on Stensgar Mountain in the NE part of the state. Here is some info on Stensgar Mountain
. Stensgar Mountain is next to the 3000+ prominence peak Huckleberry Mountain and one drives past the former to get to the latter.
I don't think this is the bygone Stranger Mountain lookout mentioned on Steph's image (bottom-right corner) because the Stensgar lookout is still there (unless it was removed/moved only recently).
Topo map of location of this lookout
Note: Goodman Hill is on Fort Lewis and is not staffed. That lookout is cordoned off by chainlink fence and barbed wire.
Other edits/comments to Steph's map:
#1 --> Kloshe Nanitch is spelled Kloshe Nanich.
#8 --> Copper Mountain is better as "Copper Lake Lookout." The lookout is not on
the summit of Copper Mountain, nor all that close to the summit of Copper Mountain. The lookout is about 3 miles from Copper Mountain.
#59 --> There are two Aeneas Mountains in Washington. The Aeneas Steph mentions is the correct one with the lookout. She also shows it only as "Aeneas." It would be appropriate to call it Aeneas Mountain. Further, the mountain has a local name of Lemanasky Mountain (local signs, etc. refer to it as that). Maybe "Aeneas Mtn (Lemanasky Mtn)" would be more apropos.
#41 --> That lookout atop Mt. Adams is hardly there anymore.
Goat Peak entry (bottom-right) --> property is misspelled (typo)