One of the earliest images and written descriptions of Warton Crag was made by William Hutchinson in 1789. Hutchinson described the site as having three curved walls which protected the northern, most gentle approach to the Crag. He noted a number of entrances that may have limited access to the site, possibly protecting it from attack, and a circular feature he thought was a reservoir.
Hutchinson’s sketch and layout is surprisingly similar to a 2016 lidar survey, despite both being recorded by very different methods over 200 years apart.
Hutchinson detailed the discovery of two coarsely baked pottery urns containing ashes and fragments of burnt bone. This suggests the area may have contained a Bronze Age burial ground, although the exact location is unknown.