Today I feel somewhat obligated to explain how to create a good treasure map.
The most important thing to remember, is that a treasure map's purpose should be to help you relocate your hidden treasure. It is not to let others find you're hard earned treasures. Thus; don't add obvious location markers that anyone would be able to recognize.
The only exception is for when you actually want to find people your "treasure." For ecample; you may need people to test traps on. The treasure map would then just become a way to lure test subjects.