Allyn56: Several of these in this series have been compromised by aggressive muggles removing the caches within hours or a day after replacement. That combined with the fact that the containers don't last very long in the desert heat and that they tend to wind up lower than they should getting stuck then broken, I think it is time to archive the series. Will leave the challenge caches up for a bit for those still in the process of completing the series but sorry to say, goodbye series. I understand another fellow local cacher is putting another Bingo series out so stay tuned! Thanks to all who played this game.