The cache is not at the posted coordinates but is less than 2 miles away

I obtained a Geocache waypoint (GC#) on February 12, 2012 for a cache that was not published. Find the name of the unpublished cache and you will find the coordinates for this cache.

The waypoint starts with GC3C and contains 2 additional letters and 1 additional number. Per GC.com Base 31 implementation, the letters ILOSU (US OIL or LOUIS) are not used.

I’m not sure if this is a bug or a feature of Recently Viewed Caches, so it’s entirely possible that this puzzle will be unsolvable or not as easily solved in the future. So solve it and grab it while you can!

Thanks to Chrysalides for planting the seed ;)

There is room for very small trade and signature items. Don't forget to bring your pen.

Enjoy!

You can validate your puzzle solution with Certitude.

Congratulations to TeamOttlet on FTS and FTF.