a ▁Province ) ▁I ban ag ic ▁I ban ag ▁( C ag ay an ▁Province ▁and ▁Isabel a ▁Province ) ▁It aw is ▁( s ou thern ▁C ag ay an ▁Province ) ▁Y og ad ▁( Is abel a ▁Province ) ▁Central ▁Cord iller an ▁Kal ing a – It neg ▁Kal ing a ▁( K aling a ▁Province ) ▁It neg ▁( A bra ▁Province ) ▁N uc lear ▁If ug ao ▁( If ug ao ▁Province ) ▁Bal ang ao ▁( e astern ▁Mountain ▁Province ) ▁Bon tok ▁( central ▁Mountain ▁Province ) ▁K ank ana ey ▁( western ▁Mountain ▁Province , ▁northern ▁Beng uet ▁Province ) ▁Southern ▁Cord iller an ▁I bal oi ▁( s ou thern ▁Beng uet ▁Province ) ▁Kal angu ya / K alla han ▁( e astern ▁Beng uet ▁Province , ▁If ug ao ▁Province , ▁north western ▁Nueva ▁V iz c aya ▁Province ) ▁Kal angu ya ▁Ke ley - i ▁ ▁Kal angu ya ▁Kay apa ▁ ▁Kal angu ya ▁T in oc ▁ ▁K ara o ▁( K ara o , ▁B ok od , ▁Beng uet ) ▁Il ong ot ▁( e astern ▁Nueva ▁V iz c aya ▁Province , ▁western ▁Qu ir ino ▁Province ) ▁P ang as in an ▁( P ang as in an ▁Province ) ▁ ▁History ▁ ▁The ▁gold ▁found ▁in ▁the ▁land ▁of ▁the ▁Ig or ot ▁were ▁an ▁att raction ▁for ▁the ▁Spanish . ▁Origin ally ▁gold ▁was ▁ex changed ▁at ▁P ang