上山下海
姑婆嶼層的鐵質石英砂當建材 https://images.plurk.com/D6JLzIRjSJpcWNO8yZDlL.jpg https://images.plurk.com/2MxeDDGOLL2lmzzxQI7AY6.jpg https://images.plurk.com/2Q3Dqd0BB31PrM5k52eKJQ.jpg https://images.plurk.com/2wsJWYRURva4DkqMPzs8dH.jpg https://images.plurk.com/7u3OIq37K60XEXpl6Ni74y.jpg https://images.plurk.com/1hijAcITMZJH2yFv2dfEo2.jpg https://images.plurk.com/78u7MtnEEAvxTC2S4oGe25.jpg