Za707. The Signal Hill Road at South West Bataan ends here at this mountain creek, photo from Harald Klose on 2018-02-08.
I am speculating that at this point Trail # 7 starts; we did not check it out. Trail #7 runs along the high slopes of Mt. Mariveles (the closest peak is called Mt. Bataan and is mentioned so in many WWII books). Trail # 7 runs all the way to the Bagac-Pilar Road.