| Site | Type | Grid Ref |
|---|---|---|
| A44 | ||
| Blaendyffryn | milestone | SN701808 |
| Capel Bangor | milepost | SN657802 |
| Blaendyffryn | milestone | SN708811 |
| Cwmbrwyno | milestone | SN723812 |
| Llywernog | milestone | SN738807 |
| Ponterwyd | milestone | SN751809 |
| A487 | ||
| Lodge Park | milestone | SN687836 |
| Eglwys Fach | milestone | SN685955 |
| Glandyfi | milestone | SN694967 |
| Tal y Bont | milepost | SN653889 |
| Odynfach | milepost | SN645875 |
| Bow Street | milestone | SN626852 |
| A470 | ||
| Wind Farm | milestone | SN931735 |
| Rhayader | milestone | SN943725 |
| Rhayader | milestone | SN954703 |
| Misc | ||
| Gelli 1 | milestone | SN763813 |
| Rhayader | milestone | SN963681 |
| Rhayader 1 | milestone | SN913715 |
| Tynyffordd | milestone | SN758801 |
| Funchesgan | milestone | SN764810 |
