The
Zambales Mountains is a mountain range on western
Luzon island in the
Philippines. The mountains separate Luzon's central
plain from the
South China Sea. Its most prominent section is known as the
Cabusilan Mountain Range composed of
Mt. Pinatubo, Mount Negron and Mount Cuadrado, which are believed to be remnants of the ancestral Pinatubo peak. The highest elevation in the Zambales Mountains is
Mount Tapulao, also known as High Peak, in
Zambales province which rises to .