NPRNTeitlMath O SafleArchifauDelweddauNPRN303569TeitlPen-y-Felin Wynt; Coed Lluest, HillfortMath O SafleBRYNGAERArchifau6Delweddau1NPRN303579TeitlGaer Fawr;Gaer Fawr HillfortMath O SafleBRYNGAERArchifau62Delweddau21NPRN33864TeitlFrongoch Lead Mine SmithyMath O SafleGWEITHDY’R GOFArchifau3Delweddau0NPRN33853TeitlFrongoch Lead Mine Engine House (Ii)Math O SaflePEIRIANDYArchifau4Delweddau0NPRN33854TeitlFrongoch Lead Mine Vaghan's Old Shaft Boiler PlantMath O SafleMWYNGLAWDD PLWMArchifau23Delweddau0NPRN33851TeitlFrongoch Lead Mine Engine House (I)Math O SaflePEIRIANDYArchifau12Delweddau0NPRN33852TeitlFrongoch Lead Mine Engine ShaftMath O SafleSIAFFTArchifau2Delweddau0NPRN33850TeitlFrongoch Lead Mine Crushing MachineMath O SafleMELIN FATHRUArchifau2Delweddau0NPRN303572TeitlOld Warren Hill, HillfortMath O SafleBRYNGAERArchifau7Delweddau1NPRN303671TeitlCastell Grogwynion HillfortMath O SafleBRYNGAERArchifau90Delweddau46NPRN33848TeitlFrongoch Lead Mine Crusher House and StampsMath O SafleMELIN FATHRUArchifau10Delweddau0NPRN33849TeitlFrongoch Lead Mine Crusher and Winder (I)Math O SafleMELIN FATHRUArchifau3Delweddau0NPRN33847TeitlFrongoch Lead Mine Capstan PitMath O SafleCAPSTANArchifau4Delweddau0NPRN33855TeitlFrongoch Lead Mine Llwynynwch ShaftMath O SafleSIAFFTArchifau4Delweddau0
