Well as you know,- everywhere that is in rural area has a "fire#"! Being with the police department, it should take little effort to obtain exact location and route-- by just contacting local fire department there! I would assume that their "911 directory' gives complete directions to drive directly to anywhere using the fire#.. I still own property in Sauk County, and the address is the "town road" (name and the fire#) for the mailbox located at each residence! (I have 3 of them in a row on one side of the road! Of course in towns anywhere,- should be fairly simple by just using the post office address!

Though I have not lived there for 30 yeras, I still like to "come home" occasionally , and have no problem finding places!

Most GPS units are progerammed to give you a location that does not even have the post office mailbox in place! Just by using the address on property description or mailing address (they may actually use a post office box sometimes)
but street address will usually end up in PO box anyway, because PO knows names etc.-of established residents)