flybuster,
Check your local state rifle & pistol association web site. The next closest 1k range may well be Douglas Ridge, on the east side of Portland (Gresham/Boring area). Not a *lot* of wind, but what they do have is evil, twisty stuff that the flags and mirage don't show accurately. I don't know too much more about whats down in Oregon, unfortunately.
I've had some other people comment on the Sunday aspect... unfortunately thats somewhat out of my control, as we share the property w/ a race track... and they pretty much have every Saturday from noon on from the end of April thru the end of September. I've considered running a 'short' Saturday match or practice, maybe a 2x20 w/ an early start time so we can get done by noon and be out of their way. Otherwise... I don't have a lot of options.
Monte