| Site | Type | Grid Ref |
|---|---|---|
| A458 | ||
| Gweinion | milestone | SH882126 |
| Braich Llwyd | milestone | SH908127 |
| A487 | ||
| Cefn y Clawdd | milepost | SH758139 |
| Minffordd | milepost | SH734116 |
| Bwlch Llyn Bach | milepost | SH745126 |
| Esgairgeiliog | milestone | SH760057 |
| Pantperthog | milestone | SH752046 |
| A496 | ||
| Bryn Bwach | milepost | SH620366 |
| Glyn-cywarch | milepost | SH604341 |
| Lasynys-fawr | milepost | SH600326 |
| Llanbedr | milestone | SH586267 |
| Taltreuddyn | milestone | SH585251 |
| Dyffryn Ardudwy | milepost | SH588230 |
| Tal-y-Bont footbridge | milestone | SH590217 |
| Tal-y-Bont | milepost | SH591214 |
| Egryn Abbey | milepost | SH596199 |
| Bodfan | milepost | SH599185 |
| A470 | ||
| Cae Glas | milepost | SH695393 |
| Trawsfynydd | milepost | SH711349 |
| Bronaber | milepost | SH712317 |
| Ochr y Bwich | milepost | SH807168 |
| B5106 | ||
| Gwdyr Uchat | milestone | SH792611 |
| A545 | ||
| Min y Twr | milestone | SH567733 |
| Gazelle Hotel | milestone | SH581741 |
| Marine | milestone | SH594750 |
| A5 Watling St | ||
| Bathsedea 2 | milestone | SH626663 |
| Bathsedea | milestone | SH615674 |
| Bron Castell | milestone | SH587724 |
| Upper Bangor | milestone | SH575719 |
| Menai Bridge | milestone | SH555718 |
| Llanfair Gate | Toll | SH532715 |
| Tafarn Ty Gwyn | milestone | SH526716 |
| Star | milestone | SH511719 |
| Gaerwen | milestone | SH495719 |
| Catwys St Mihangel | milestone | SH479720 |
| Pentre Berw | milestone | SH466728 |
| Creigli | milestone | SH451736 |
| Rhostrehwfa | milestone | SH440744 |
| Mona | milestone | SH426749 |
| RAF Mona | milestone | SH411755 |
| Bryngwran | milestone | SH350775 |
| Bedd Manarch Bay | milestone | SH276803 |
| Misc | ||
| Llandygli | milestone | SH598709 |
