Named after the exposure of red chalk, Red Hill is one of the most attractive and interesting fragments of ancient 'sheep walk' downland which once covered much of the Lincolnshire Wolds.
Part of the site used to be a barley field but has been returned to a wildflower-rich grassland. It is one of the best chalk down land meadows in Lincolnshire.
The reserve is rich in wildflowers that change the colours of the meadows through the spring and summer. From the yellow spring flush of cowslips, followed by bird's-foot trefoil and kidney vetch, through to the pinks and blues of pyramidal orchid, scabious and knapweed. In summer marbled white butterflies and six-spot burnet moths can be seen.
In June 2013, Red Hill Nature Reserve was named as one of the 60 Coronation Meadows across the UK to mark the 60th anniversary of the Queen's Coronation.
The meadow adjoins the Goulceby-Raithby road, about 1.5km (0.9 miles) south-west of the Bluestone Heath road. Parking places are provided at the top end and to the east of the meadow.
Red Hill Nature Reserve is managed by the Lincolnshire Wildlife Trust.