Archif6205084TeitlAdditional InformationLefelBatchDisgrifiadLocation maps for round cairns at Onllwyn, undated.CyfrwngText.Delweddaun
Archif6061784TeitlGM529 - Cadw Scheduling RecordsLefelSub-groupDisgrifiadFile of Cadw scheduled monument records for Two Round Cairns At Onllwyn (GM529) , consisting of scheduling notices, accompanied by Field Monument Warden reports. Files stored in scheduled monument number order.CyfrwngText, Cartographic.Delweddaun
Archif6511748TeitlCSAM_JC_2006_16 - Cadw Scheduled Ancient Monument 35mm NegativesLefelSub-groupDisgrifiadColour photo surveys of scheduled ancient monuments in Breconshire and Glamorgan carried out by Joseph Cliff, 2006.CyfrwngTwo sheets. Photo.Delweddaun
