List of Scheduled Ancient Monuments of National Importance (as of 02.01.2018) Ref. Monument Community Class Cadw Ref Number AM1 Cairnfield, Mynydd Eglwysilian Aber Valley/ Nelson PF 5/3211/Gm352 AM2 Rectangular earthworks 530m SSW of Bargoed R 5/0608/Gm164 Heol-Ddu-Uchaf AM3 Cairn 270m North of Pant Ffosyrhebog Darran Valley PF 5/2989/Gm313 AM4 Capel Gwladys, Fforest Gwladys, Gelligaer Gelligaer LE 5/2988/Gm309 AM5 Dyke 387m East of Clawdd Trawscae Farm Darran Valley LE 5/2334/Gm261 AM6 Platform Houses on east side of Gelligaer Darran Valley MS 5/2992/Gm311 Common AM7 Site of Tegernacus Stone Darran Valley PF 5/3418/Gm339 AM8 Three Platform Houses on Cefn-y-Brithdir Darran Valley MS 5/2991/Gm317 AM9 Capel-y-Brithdir (monument) Darran Valley E 5/6480/Gm451 AM10 Fforest Gwladys Roman Earthwork Gelligaer PF 5/2438/Gm273 AM11 Gelligaer Roman Site Gelligaer R 5/1153/Gm016 AM12 Maen Cattwg (cup-marked stone) Gelligaer PF 5/1151/Gm176 AM13 Twyn Castell Gelligaer MS 5/1152/Gm121 AM14 Cairn Cemetery on Mynydd Bach, Bedwas Maesycwmmer PF 5/3298/Mm196 AM15 Pen-y-Rhiw Round Cairn Maesycwmmer PF 5/0324/Mm149 AM16 VACANT AM17 Rhymney Upper Furnace, Llechryd Rhymney I 5/3422/Gm403 AM18 VACANT AM19 Garnedd Llwyd (remains of cairn) Aber Valley PF 5/0525/Gm462 Senghenydd AM20 Two Round Cairns on the Bryn Aber Valley Gm463 AM21 Cross Ridge Dyke and Cairn on Twyn Aber Valley LE 5/6512/Gm456 Hywel AM22 Bedwas Churchyard Cross, St Barrwg’s Bedwas, Trethomas & CI 5/0622/Mm143 Church, Rectory Road, Bedwas Machen AM23 Begwns Round Barrow, Mynydd Machen Bedwas, Trethomas & PF 5/0626/Mm071 Machen AM24 Cornish Type Engine House, Bryngwyn Bedwas, Trethomas & I 5/3698/Gm440 Colliery Machen AM25 Caerphilly Castle Caerphilly MS 5/1044/Gm002 AM26 Castle Morgraig Caerphilly MS 5/0548/Gm/031 AM27 Caerphilly Mountain Shaft Mounds Caerphilly I 16488/Gm454 AM28 Bryn Owen Farm Cairns, Llanfabon Llanfabon PF 5/0868/Gm051 AM29 Carneddi Llwydion, Mynydd Eglwysilan Nelson PF 5/2835/Gm302 AM30 Site of former Rudry Ironworks Rudry I 5/3195/Gm357 AM31 Ruperra Castle Rudry MS 5/3322/Gm379 AM32 Gwern-y-Domen Castle Mound Van MS 5/2182/Gm218 AM33 Twmbarlwm Mound and Bailey Castle Risca MS 3/2144/Mm044 AM34 Twyn-Yr-Oerfel Round Barrows, Ynysddu Mynydd-y-Grug Ynysddu PF 3/0366/Mm070 AM35 Twyn-Cae-Hugh, Round Barrow, Ynysddu Mynydd-y-Grug Ynysddu PF 3/0367/Mm3 AM36 Fort South of Penllwyn Fawr Pontllanfraith R 3/1678/Mm96 AM37 Twyn Tudor Motte & Bailey Castle, Mynyddislwyn MS 3/2154/Mm035 Mynyddislwyn AM38 Round Cairn 315m South of Upper Wenallt Risca PF 3/2335/Mm46 AM39 Charcoal Blast Furnace at Abercarn Abercarn IS CAM1/1/6655/Mm/250 AM40 Caerphilly Iron Furnace, Caerphilly Caerphilly CAM1/1/6737/Gm503 AM41 Former Dam of Cwmcarn Canal Reservoir Crosskeys IS CAM1/1/6746/Mm/259(CAE) AM42 Machen Forge & Tinplate Works, Bedwas Bedwas, Trethomas & I CAM1/1/6905/Gm516 Machen AM43 Ruperra Hillfort & Motte, Rudry Rudry MS GM511 (CAE) AM44 Pen-y-Fan Canal Reservoir, Crumlin Crumlin I CAM 1/1/6911 Mm269(CAE) AM45 St. Sannan’s Churchyard Cross Bedwellty C & IS A-CAM 1/1/7327/Mm310 AM46 Mynydd Machen House Platforms to W Bedwas, Trethomas & M/PMS Mm337 (CAE) Machen AM47 Ruperra Castle Lower Summerhouse Rudry M/PMS Gm590 (CAE) remains AM48 Gelligaer Common Round Cairns Bedlinog, Merthyr Tydfil Prehistoric Gm220 R,R & F AM49 Cefn Man Moel Cross-Ridge Dyke Cwm / Argoed Linear MM345(BLG) Earthworks AM50 Rhaslas Pond South Dam Darran Valley Water Gm624 supply & drainage .