The cache is NOT at the DAM posted coordinates. Do not waste your DAM time looking for the cache at that DAM location. (Unless you want to go for a DAM swim, but I would advise against it since that is a horrible DAM idea.)
In order to find the final coordinates, you have to enter the correct answer into the geochecker. I am thinking of a number between 1 and 999,999,999. Just enter that number into the geochecker and you will be provided with the final coordinates. Okay, since it is Christmas, I will embrace the spirit of giving and good will. Here is a hint to narrow things down a bit!
You are looking for a number somewhere between 1224 and 1226
(No punctuation)