Fron Hall United lies in the community of Gwernymynydd in the county of Flintshire. It is located at Ordnance Survey national grid reference SJ22406210.
The mine is situated on a vein 200 yds. south of, but parallel to the Fron Issa Vein, within the Cefn y fedw Sandstone.
Large spoil heaps and one very large shaft lie to the west of the road from Gwernymynydd in an area of overgrown woodland. Building ruins lie alongside the road at SJ22306215 to the east of an area of collapse, which may have been a level. Little evidence can be seen of the large scale workings in the late 19th century by the Fron Hall Mining Company.
There is no evidence of power sources, although documentary sources mention an engine shaft and a whim shaft (Smith 1921).