As stated in our bylaws "The boundaries of UPNA are: on the North, N.
Lombard; on the East, N. Chautauqua; on the South, the N. Willamette
Blvd. bluff and slope from N. Chautauqua to N. Olin (ie: excluding the
Mocks Bottom Industrial Area), the remainder of the bluff and slope
southward from N. Olin along the foot path from N. Willamette to the
Willamette River, and the Willamette River westward to the railroad cut
(including all the remaining bottom area below Waud Bluff); and on the
West, the Burlington Northern Railroad line (the cut). Boundary lines
shall run along the center of all streets, roadways and right of way."
all Portland Neighborhoods (pdf format)