[1] The shrine dates from the early 2nd century and is carved into the face of a sandstone quarry.

Next to the shrine is an opening into the rock face which is possibly a natural fissure that has been enlarged and which is known as Edgar's Cave.

[2] The shrine stands beside the route of the old main Roman road into the fortress of Deva from the south.

She is often depicted with her attributes of helmet, shield, breastplate, and spear, but in this instance she is shown in a simplified form, standing in a representation of a temple.

[3] The Roman quarry, together with Edgar's Field and the image of Minerva, is a Scheduled Monument.