Results of a geophysical survey undertaken on land to the east of the shooting ground and north of Whitewater Lane, Blyth near Worksop, Nottinghamshire. The geophysical survey was carried out in the 6 hectare eastern field and a sample area (60m x 60m) of the western field of the two fields making up the parcel of land included in the Proposed Development Area. The survey will form part of a scheme of archaeological evaluation fieldwork to accompany a planning application for a proposed change of use of the land to an activity centre comprising access roads, parking area, club house incorporating cafe, office/meeting room, proposed engineering works to form track ways, footpaths, landscaping and 3m bunds in advance of a planning application for a residential housing development. A geophysical survey was carried out in June 2018 and the instrument chosen was a Bartington Grad 601 dual sensor fluxgate gradiometer. The geophysical survey has revealed a large, and possibly regionally significant, rectilinear enclosure with probable surviving truncated internal features in the south-east of the eastern field. The survey has also revealed the remains of a probable post-medieval field boundary and possibly the remains of a much earlier field system although the results suggest that, if this is the case, much of it has been destroyed by later agricultural activity. The majority of the remaining anomalies of possible archaeological interest were recorded in the southern half of the eastern field but are of less certain origin. Of particular interest may be a possible double-ditched track way, another possible track-way or holloway and an interesting curvilinear arrangement of anomalies, but it is possible that the anomalies have a non-archaeological origin such as geological or topographical features or fairly ordinary agricultural remnants. The northern part of the eastern field appears to be largely devoid of anomalies of archaeological interest, but this may be due to the presence of alluvial deposits which could have a masking effect on the data. The western field was not included in the geophysical survey except for a small sample area that revealed the presence of predominantly agricultural remains and two very weak linear anomalies that are impossible to interpret but could be tested by field evaluation.