This is quick, simple two-stage multi. If your final coords put you more than 200 feet from the posted coordinates, you goofed.
At the posted coordinates, you should spot a 4 inch by 4 inch sign nailed to a tree. It doesn't matter which way you came, if you are on the Horse trail, you will see it. The brown sign has a three digit number (XXX) in white letters.
To find the final: Using the listed North Coordinate, Take the sign number XXX and subtract 162 from it.
Using the listed West Coordinate, Add the sign number XXX to the posted west coordinate; then subtract 145 to get you new west coordinate.
The final is a small, screw top container that could hold a baseball.