The above listed coordinates are incorrect. As a matter of fact, they are just an indicator of which exit you might use to aproach a parking spot, and nothing more.
However, once you are where you think that the cache MUST be, turn around and follow the fallen tree.
You must closely follow the instructions below and make a Cootie-Catcher/Fortune Teller to obtain the true coordinates.
You'll need to print out the picture below then carefully cut it out along the outer solid lines.
If you're using Internet Explorer you can right click the image and choose "Print Image".
In Firefox you can right click and select "View Image" then print from the tool bar.)
Now, enlist the services of a child to help you with the next step.
If one isn't available to you, then you will just have to revert back to your own childhood and try to remember how to make the Cootie-Catcher/Fortune Teller.
Please follow the instructions very carefully!
After you have printed your sheet and cut it out, turn it over with the printed side down and continue on to the instructions below:
Gur nafjre yvrf vafvqr, svefg bar, naq gura gur bgure.
Ebbgrq.
Fgenvtug sbejneq pnpur, bapr lbh ner cnexrq. ;)