It's so sad that Oregon has gone to the "dark side" regarding artifacts and bottle digging on private property. Archys generally learned EVERYTHING that they now know from studying books written by collectors. It's been a couple of generations since the early bottle books were printed and they consider the knowledge to theirs only by this date. I love to watch the amateurs at work, scurrying about like little hens when a shard shows up. Complete and mint bottles mean no more to them than the tiniest of pieces. I know from experience that the real good bottles fall into the supervising archaeologist's hands and wind up off site in his or her personal stash.[
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