The cache IS at the posted coordinates.

The Challenge
Find at least two caches of every difficulty/terrain combination (2 x 81 unique combinations).
Feel free to click on the Project-GC banner, below, to see if you've completed this challenge:

The Details
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You can take as long as you want to accumulate these 162 caches.
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Unlike the original “Well Rounded Cacher (The Fizzy Challenge)” (GC11E8N), this challenge imposes no restrictions regarding cache publication dates or an icon requirement.
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All cache types are eligible.
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You cannot include this cache among your 162 qualifying finds.
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Normal geocaching conventions apply. For example, you cannot find your own caches.
Logging this Cache
You can sign this cache’s physical log sheet at any time – before, during, or after your qualifying day. But do not log an online “Found It” until you’ve signed this cache’s physical log sheet and shown that you’ve met the challenge requirements. We’ll delete any premature “Found Its.”
If you sign the physical log sheet before you complete the requirements, then you can log an online “Write Note” to help you remember this fact.
Providing Proof
If your Groundspeak finds calendar can be viewed by the public, then you don’t have to prove you’ve met this challenge’s requirement; we’ll simply check your Groundspeak profile’s statistics page.
If your Groundspeak finds calendar is private, then you must prove you’ve met this challenge’s requirement. The easiest way would be to upload a screen shot of your Difficulty/Terrain grid (or the above Project-GC challenge checker’s output) to your online log:


Or, you could log a list of 162 finds that includes (at a minimum) each cache’s GCCode, difficulty and terrain ratings, and the date you found it. For instance, here’s a partial list of our qualifying finds:
1.0/1.0 GCA079 - 05/09/2009 GC3ECC - 08/07/2009
1.0/1.5 GCWNYY - 05/08/2009 GC12Q62 - 07/01/2009
1.0/2.0 GC9BCF - 05/09/2009 GC19907 - 10/23/2009
1.0/2.5 GCGWV6 - 06/22/2009 GC10ZFY - 12/26/2009
1.0/3.0 GC1H4TP - 06/19/2009 GCN8WC - 09/20/2009
1.0/3.5 GC155VQ - 07/23/2009 GCZ7LW - 04/11/2010
1.0/4.0 GCQBT1 - 03/25/2010 GC29QYM - 06/17/2012
1.0/4.5 GC134E - 06/23/2014 GC4A2R0 - 06/30/2014
1.0/5.0 GCYZ5T - 02/06/2010 GC23K4Y - 02/13/2010
1.5/1.0 GC1363T - 05/14/2009 GCX57A - 06/27/2009
1.5/1.5 GCZ2M9 - 05/07/2009 GC1E2B5 - 07/25/2009
...
5.0/4.5 GC4A2TC - 06/30/2014 GC1WWQB - 09/28/2014
5.0/5.0 GC26C24 - 12/17/2010 GC1MPHR - 12/18/2010
Credits
We got the basic idea for this challenge from Kealia’s “Well Rounded Cacher (The Fizzy Challenge)” (GC11E8N).
Congratulations to behmSquad for being the first to complete and find this challenge.