At the posted coordinates, you’ll find a great tree. Count how many trunks come out from the base below six feet up.
Take that number and multiply it by 80.69275 . This will give you how many feet away the cache is.
Walk that distance at a bearing of 153.31321221339°
Want to see if you have the right number of trunks?
Note that the given coordinates when you solve are the start of your projection, not where the hide is!
You can validate your puzzle solution with
certitude.