North by Northwest is the title of an amazing film by the master of suspense, Alfred Hitchcock. Though it may not be possible to find North by Northwest on your compass, you can most certainly find the North and West coordinates that you will need for this cache. No. It will not be microfilm that you seek, as it was in the movie. Instead you will be looking for a Ammo Can in a hollow tree, but how many dead-ends, red herrings, and false starts will it take you to find it?
N 36 17.109W 79 40.152
You can check your answers for this puzzle on GeoChecker.com.