Visible from the A479 if you have a quick look through the field gates. But be careful - this is a busy road with very little parking opportunities. Best bet is to pull in next to the field gate in which the stone stands. Although there is no public right of way to the stone it is easily visible and only a short walk to it you want to get up close and personal.
North of Tretower and within sight of the ruined castle there is this seven and a half foot whopper, failing miserably to hide in a hedge, easily seen driving north on the A759. As we walked over to the stone a red fox ran past stopping momentarily to keep an eye on us. The 'sacred hill' Cribarth is to the south.