A ridge of low Jurassic hills runs through the county, separating the basins of the Welland and Nene rivers. The county has good communications as it is crossed by two main railway lines and the M1 motorway, and it has many small industrial centres rather than large conurbations. The main architectural feature is its country houses and mansions.[5]
The prominent medieval ridge and furrow at the southern end of the site displays the ancient field system of Great Oakley. The dry ridges have diverse flora including cowslip, knapweed and quaking-grass. The furrows are poorer in species, while the northern end, which borders Harpers Brook, has plants characteristic of wet ground, such as cuckooflower and hairy sedge.[16]
This is a disused quarry which was operated during an unknown period between the Middle Ages and the late eighteenth century. It has grassed ridges and hollows, some of them steeply sloping. There are a variety of habitats including limestone grassland.[21]
This site on a tributary of the River Nene is often flooded in the winter. There are hedges and ponds, together with areas of scrub. Birds include green woodpeckers, kestrels and snipe.[29]
Frogs, newts, damselflies and dragonflies breed in this nature reserve, which has woodland, ponds, scrub and grassland. There are plantations of sweet chestnut and douglas fir, but in some areas native woodland is regenerating naturally.[30]
This site on the bank of the River Nene has old gravel pits, meadow and fen ditch. Around 350 invertebrate species have been recorded, including some which are rare. Water birds include snipe, teal, tufted duck and the uncommon water rail.[32][33]
Artificial fertilisers have never been used on this hay meadow, and it has not been ploughed for several hundred years. There are fifteen species of grass and diverse wild flowers, including black knapweed, lady's bedstraw and lady's smock, which is a food source for the orange tip butterfly.[36]
This one-kilometre (0.6-mile) long site is a footpath along a former railway line. The path is lined with trees and shrubs of blackthorn, hawthorn, crab-apple and ash, and a balancing pond next to the path has been restored, increasing biodiversity.[37]
The River Nene runs through this site, which also has large areas of open water and grassland. There are nationally important numbers of goosanders, wigeons and gadwalls in winter, and banded demoiselle damselflies nest on nettles along the river bank.[38][39]
^"Titchmarsh". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 24 February 2017. Retrieved 3 May 2017.
^"Great Oakley Meadow". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 22 December 2016. Retrieved 7 February 2017.
^ ab"Barnes Meadow". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 19 February 2017. Retrieved 20 December 2016.
^"Barnes Meadow". Local Nature Reserves. Natural England. 22 March 2013. Archived from the original on 21 December 2016. Retrieved 30 April 2017.
^"Crowfields Common". Local Nature Reserves. Natural England. 25 March 2013. Archived from the original on 21 December 2016. Retrieved 30 April 2017.
^ ab"Farthinghoe". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 22 December 2016. Retrieved 20 December 2016.
^"Farthinghoe". Local Nature Reserves. Natural England. 25 March 2013. Archived from the original on 21 December 2016. Retrieved 21 December 2016.
^"Glamis Meadow and Wood". Local Nature Reserves. Natural England. 25 March 2013. Archived from the original on 21 December 2016. Retrieved 17 April 2017.
^ ab"Great Oakley Meadow". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 22 December 2016. Retrieved 20 December 2016.
^"Greens Norton Pocket Park". Local Nature Reserves. Natural England. 25 March 2013. Archived from the original on 22 December 2016. Retrieved 19 March 2017.
^ ab"Bradlaugh Fields". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 23 December 2016. Retrieved 28 April 2017.
^"Kinewell Lake". Ringstead Parish Council. Archived from the original on 18 April 2017. Retrieved 17 April 2017.
^"Kinewell Lake". Local Nature Reserves. Natural England. 25 March 2013. Archived from the original on 22 December 2016. Retrieved 17 April 2017.
^ ab"King's Wood". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 22 December 2016. Retrieved 20 December 2016.
^"King's Wood". Local Nature Reserves. Natural England. 25 March 2013. Archived from the original on 21 December 2016. Retrieved 7 February 2017.
^ ab"Kingsthorpe Meadow". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 21 December 2016. Retrieved 20 December 2016.
^ ab"Lings". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 22 December 2016. Retrieved 20 December 2016.
^"Scrub Field". Local Nature Reserves. Natural England. 25 March 2013. Archived from the original on 22 December 2016. Retrieved 1 May 2017.
^"Storton's Pit". Local Nature Reserves. Natural England. 25 March 2013. Archived from the original on 21 December 2016. Retrieved 20 March 2017.
^ ab"Summer Leys". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 20 November 2016. Retrieved 20 December 2016.
^"Tailby Meadow". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 22 December 2016. Retrieved 20 December 2016.
^ ab"Titchmarsh". Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Archived from the original on 24 February 2017. Retrieved 20 December 2016.
^"Titchmarsh". Local Nature Reserves. Natural England. 25 March 2013. Archived from the original on 21 December 2016. Retrieved 21 December 2016.