Cache is NOT at location listed. You need to track down the seven color caches in the ROYGBIV series, collect and interpret the clues in order to find this final cache.
Consider the following N 42 29.ABC and W 090 51.DEF. Your gathered clues should give you enough data to find the final cache. You're looking for a pot of gold (or maybe it's more of a yellow). If you've got the right coords, this cache will be an easy find. FTF garners a gold $1 coin.
We hope you've enjoyed the ROYGBIV series of caches.