Name Refers to Grid Reference Yr Ysgwrn the farmhouse itself 722 346 Llyn Cregennan middle of the island in the lake 661 144 Eglwys Llandanwg + church symbol 568 283 Craig yr aderyn feature  Bird ROck 646 068 Y Gwyniad the ‘g’ in Llyn Tegid 911 338 Eglwys Llangelynnin + church symbol 751 737 Cromlech Capel Garmon between the and the writting 816 545 Plas Tan y Bwlch Plas building 654405 Ynys y Pandy the mill building, not the blue writing, 549 434 Llyn Tegid Mwnwgl y llyn bridge 929 352 Tryfan the summit ‘spot height’ .917 664 593 Cwm Cynfal bridge over the river 705 411 Carnedd Llywelyn the summit ‘spot height’.1064 683 644 Dolgellau bridge over the river Mawddach 728 180 Nant Gwynant Youth Hostel  640 514 Llynnoedd Mymbyr Garth farm building 702 571 Tomen y Mur the circular motte 706 386 Llyn y Dywarchen the island in the lake 561 535 Cwm celyn + or Memorial chapel 848 413 Yr Wyddfa Summit train station 609 544 Abergwyngregyn the bridge itself-not the writen ‘bont newydd’ 662 720 Capel salem the building under Capel Salem 603 274 Castell Harlech the castle 581 313 Abaty Cymer the abbey building 721 195 Blaen Cwm Mynach Blaen Cwm Mynach farmhouse 685 227 Bwlch Drws Ardudwy highest contour of pass, under ‘Cairn’ 663 281 Pwerdy Trawsfynydd the powerstation 690 381 Nant Ffrancon bridge over the River Ogwen 639 625 Y Bala Tomen y Bala 928 361 Migneint Pont ar Gonwy 778 446 Pwerdy Maentwrog Powerstation building 654 395 Afon Mawddach bridge to the left of the blue text 736 276 Dinas Mawddwy PO – Post Office 859 148 Dinas Emrys Centre of fort / Dinas 607 492 Bryn Cader faner ‘cairn’ 648 353 Y gwyliwr a’r Glyderau Summit of Glyder fach 657 583 Nant Peris Pont y Gromlech bridge ver the river 629 566 Cnicht the summit 645 466 Llyn y Mwyngil the ‘Y’ in the middle of Tal ‘Y’ Llyn 716 097 Cwm Idwal where the path reaches the lake 647 598 Aberglalsyn the bridge and viewpoint 594 462 Clogwyn Du’r Arddu Middle of Llyn Arddu lake 601 557 Castwll y Bere the castle itself. 667 085