Udink: I got a report from Utahnix that this cache was missing again, so this evening I took my family down to Buckhorn Wash so we could place a new one. I checked and, indeed, the replacement container that was left in April (by the way, thanks guys [:)]) is no longer there. We ate dinner in one of the campsites near the cave, then I scrambled up past the cave and placed a cache up on top of the point just north of the old cache. The new one is easier to get to--or perhaps more difficult, depending on your perspective--than the old cache was.
Thanks to everyone who dared to climb up to this one to find it. It was a fun location, but maybe it wasn't the most well thought out place.