35 AoA
Pattern Altitude
Kinda sorta.
OMMSI is on the approach to KPDX Rwy 28R, which puts it southeast of the airport. OMSI (the museum) is -- just barely -- in southeast Portland, on the east bank of the Willamette River. POWLZ is on the approach to 10R, so it's northwest of the airport; and Powell's Bookstore is in Northwest Portland (just barely -- it's on the north side of Burnside St., which is the dividing line between NW and SW).
And there's no known connection, but the KPDX ILS 10L procedure has a fix called BUXOM ... six NM south of a nude beach.
Nice, yeah that is what I was wondering. As an aside, I miss Powells......best bookstore ever!