Rakusan: After the last DNF, I stopped by briefly a few weeks ago to see if I could find it. I didn't have a light, though, and that hampered my search.
This afternoon, I went back with a strong flashlight and made a thorough search of the site. I didn't find any trace of the cache. Maybe the raccoons got it - I found lots of incriminating paw-prints - but in any case, it's been muggled. And I've decided against replacing it, so it's archived.
Now to "blow the cover" - this cache was in a very large culvert underneath Airpark Road, one large enough for the stream and for a hiking/horseback trail. I put it in the riprap boulders across the creek from the trail, as close to the center of the culvert as I could manage. The coordinates are those of the center-stripe of the roadway, over the center of the culvert.
It's had a good long play, and I offer my thanks to those who have found it - and my apologies to those who never did.