MYSTERY CACHE: DO NOT GO TO THE POSTED COORDINATES
I had a little bit of fun making this one...
I used a little of everything in this puzzle, it seems. Just when you feel like you've got it, it won't be there. Have fun!
The only information required to solve the puzzle is for the fourth step, and that is as follows. JT
The final is located under some brush. The coordinates were a little spotty, so when you think you have the location, match it to the certitude, and you should get a picture of the tree and brush the container is hidden in. If you follow the right geo-trail, it should lead you right to it.
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You can validate your puzzle solution with certitude.