While attending a recent event some HARDCORE cachers informed Mr. Shamrock that they had nearly completed all of the caches in this series. And so... that's right... our geocaching experiment continues. We have been placing caches around to answer the title question. Our hypothesis is that we do believe cachers value smileys, and we hope this data recorder and you will help prove our hypothesis. This is our tenth placement in the series, hence the gaelic term 'deich' meaning ten. This recorder is at a busy intersection in NE Philadelphia. Muggle traffic can be high! Good luck and enjoy.