Must be something about Washington that moles like. Gregoire ??
Anyway, I'm in Kitsap County and I've been trapping the little beasts since about 1988. I've been using the scissor type spring traps exclusively. In that time I have a total of 299 KIA's.
I will never run-out of moles as I'm surrounded by woods and pastures and that's where they come from even though I completely wipe-out my resident population every year.
Rich