It's tempting to pull off SR 279 to explore the gorgeous scenery in and around Bibo. If you do, however, be aware that "some people might kill you." This according to an agitated villager who caught me admiring a local chapel. (Or morada, to be more precise.)
On a related note: Don't bother looking for (or even asking about) Our Lady of Loretto.
Friendly staff at the Bibo Bar can best advise on how to avoid death threats while enjoying the local sights. If you call ahead, they can probably hook you up with a local guide. Either way, the burgers alone are worth the trip. They also have a charming new B&B.