The Lincolnshire Wolds combines a dramatic western scarp, rolling chalk uplands with steep-sided dry valleys and former sea cliff on the eastern edge.
The base for this diverse landscape lies beneath our feet - the geology. Rocks are the solid geology, such as chalk, limestone and sandstone that were laid down in the Cretaceous period, between 140 - 65 million years ago. From being under a tropical sea, then covered in ice, to eventually becoming the highest eastern point between Yorkshire and Kent, the Wolds landscape that we see today has undergone immense change.
Hubbards Hills, Louth's 40m deep, steep sided chalk valley was originally cut by torrents of glacial meltwater during the last ice age about 40,000 years ago. The ice had dammed up the Hallington Valley to create a lake which spilled over into the Welton Valley as a waterfall. As this was cut back, so Hubbards Hills was formed. Such was the volume of water that this process took two to three hundred years.
Geodiversity is the variety of rocks, minerals, fossils, soils and landscapes, together with the natural processes which form them. It is the link between geology, landscape, nature and people - from where our ancestors first settled to where industry has developed.
Lincolnshire Geodiversity Group
The Geodiversity Group is an independent group of amateur and professional geologists dedicated to the conservation of the geodiversity of Greater Lincolnshire. The Greater Lincolnshire Nature Partnership coordinates the activities of this group.
The aim of the Geodiversity Group is to deliver the Local Geodiversity Action Plan (LGAP). The LGAP for Greater Lincolnshire was published in 2010. It aims to promote action to conserve and enhance the diverse geological heritage of Greater Lincolnshire whilst promoting and managing the sustainable use of its geodiversity resources. A key part of the LGAP is the survey and designation of Local Geological Sites.