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Rauceby Warren

Grassland with rich flora.

The reserve lies on the sandy warrens overlying limestone formed by glacial melt waters, which carried sand through the Ancaster Gap. Few patches of the old heathland turf of these deposits now remain. Much of the reserve consists of abandoned sand and gravel pits, which were worked between 1920 and 1967.

The mixture of calcareous and acid soils gives rise to a varied flora rather like that of the Breckland of Norfolk and Suffolk. Over 320 plants have been recorded, including many localised species and one national rarity, the smooth rupturewort. Over 90 species of birds have been recorded of which 25 are known to nest. Records also include 60 species of aculeate wasps and bees.

Management consists largely of mowing grassland and tall herb vegetation, preventing scrub invasion, planting trees and repairing the stone wall on the northern boundary.


Nearest postcode: NG34 8PT

Please note - postcodes are for the nearest registered address as we are unable to get postcodes for nature reserves. Please use the maps provided here to locate the entrance to the reserve.

Nearby nature reserves

Ancaster Valley
3 miles - Lincolnshire Wildlife Trust
Moor Closes
3 miles - Lincolnshire Wildlife Trust
Duke's Covert & Copper Hill
3 miles - Lincolnshire Wildlife Trust

Nature reserve map

Reserve information

On the south side of the A153 Sleaford-Grantham road, 4km west of Sleaford.
Map reference
TF 034441
Best time to visit
Apr - Aug
Get directions
Find out here
Public transport
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Opening Times
Open at all times
8.80 hectares
Walking information
Two waymarked routes.
There is parking space through a gate near the Sleaford end or on the open space at the western end.
No dogs allowed
Reserve manager
Lincolnshire Wildlife Trust
Tel: 01507 526667


Factsheets and guides for your visit