The Wolds comprise a series of low hills and steep valleys underlain by calcareous (chalk and limestone) and sandstone rock, laid down in the Cretaceous period. The characteristic open valleys of the Wolds were created during the last ice age through the action of glaciation and meltwater.
Geographically, the Lincolnshire Wolds are a continuation of the Yorkshire Wolds which run up through the East Riding of Yorkshire, the Wolds as a whole having been bisected by the tremendous erosive power of the waters of the Humber.
The Lincolnshire Wolds can be divided into four distinct areas: the main area of chalk hills in the north, the north west scarp, an area of ridges and valleys in the south west, and the claylands in the south east. The Red Hill nature reserve near the village of Goulceby is notable for the unusual red colour of its soil and underlying chalk.
Wolds Top is the highest point in the whole of Lincolnshire and is marked by a trig point just north of the village of Normanby-le-Wold, at approximately 168 metres (551 feet) above sea level (TF121964). Other hills include Castcliffe Hill (TF301735: 139 m), Gaumer Hill (TF289778: 129 m), Meagram Top (TF392789: 58 m), Warden Hill (TF347737: 113 m), Tetford Hill (TF326761: 142 m) and Hoe Hill (TF308731: 127 m).
The Wolds provide some spectacular views across the flat fens and salt marshes of the remaining Lincolnshire countryside: it is possible, from various points on the Wolds, to see all of the larger structures in the north and east of the county: the Belmont mast, Boston Stump, Grimsby Dock Tower, the Humber Bridge, Lincoln Cathedral, St James’ Church in Louth (known locally as ‘The Cathedral of the Wolds’, though it holds only parish church status), the radar station near Normanby, Tattershall Castle, and the wind turbines on the coast near Mablethorpe.
Canon 5D Mk2