The old Climbing guide to Or was notorious for mistakes,(one on every page in the Smith section) .One page had mistakes on every route,says Alan Watts.
A glaring error on the approach to Mt Washington that has sent countless people into the wrong area! (Padgens Lake).
Oregon Rock and anything from Smoot, again, are bad.
For content alone if nothing else, Select Alpine Canadian Rockies, as well as the Southern BC one are the best, next to the Portland Rock Climbs