June 2022 – vol. 115, issue 6, pp 354–356 Soil Hill, Yorkshire, is a peak 400 m high on the eastern edge of the Pennines, straddling the border between Calderdale and Bradford metropolitan boroughs. Clay has been extracted from the hill for decades, and the excavations have since been backfilled with industrial waste and restored. Excavation work continues to this day, with the current pit part of a 15-year project that sits adjacent to t... This article is only available to registered users.To read more, please log in or purchase a subscription.