High Marnham Power Station was a coal fuelled power station in Nottinghamshire, to the west of the River Trent, approximately 0.5 miles (0.8 km) north of the village of High Marnham. During the investigation five trenches were excavated, each measuring approximately 30m in length and 1.8m wide. A series of made ground and modern industrial waste layers were revealed during the evaluation; these were probably associated with the former power station on the site. No archaeological features were identified during the work. An iron rod and two nails were recovered. All are probably later post-medieval in date. The nails may indicate the presence of minor structures such as fences.