Dersingham Bog is a biological and geological

Site of Special Scientific Interest A Site of Special Scientific Interest (SSSI) in Great Britain, or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland, is a conservation designation denoting a protected area in the United Kingdom and Isle ...

Norfolk Norfolk ( ) is a Ceremonial counties of England, ceremonial county in England, located in East Anglia and officially part of the East of England region. It borders Lincolnshire and The Wash to the north-west, the North Sea to the north and eas ...

, England. It is a

Nature Conservation Review ''A Nature Conservation Review'' is a two-volume work by Derek Ratcliffe, published by Cambridge University Press in 1977. It set out to identify the most important places for nature conservation in Great Britain. It is often known by the initi ...

site, Grade 2, a National Nature Reserve and a

Ramsar site A Ramsar site is a wetland site designated to be of international importance under the Ramsar Convention,8 ha (O) *** Permanent 8 ha (P) *** Seasonal Intermittent < 8 ha(Ts) **

Norfolk Coast

Area of Outstanding Natural Beauty An Area of Outstanding Natural Beauty (AONB; , AHNE) is one of 46 areas of countryside in England, Wales, or Northern Ireland that has been designated for conservation due to its significant landscape value. Since 2023, the areas in England an ...

, and the Roydon Common & Dersingham Bog

Special Area of Conservation A special area of conservation (SAC) is defined in the European Union's Habitats Directive (92/43/EEC), also known as the ''Directive on the Conservation of Natural Habitats and of Wild Fauna and Flora''. They are to protect the 220 habitats and ap ...

Part of it is a

Geological Conservation Review The Geological Conservation Review (GCR) is produced by the UK's Joint Nature Conservation Committee. It is designed to identify those sites of national and international importance needed to show all the key scientific elements of the geological ...

site.

Location

Dersingham Bog is near the West Norfolk Villages of

Dersingham Dersingham is a village and civil parish in the English county of Norfolk. Dersingham is located north-east of King's Lynn and north-west of Norwich. History Dersingham's name is of Anglo-Saxon origin and derives from the Old English for th ...

and Wolferton and is one of the few remaining wilderness areas left in this part of Norfolk which is otherwise dominated by intensive agriculture. The Reserve is part of the

Sandringham Sandringham can refer to: Places Australia * Sandringham, New South Wales, a suburb of Sydney * Sandringham, Queensland, a rural locality * Sandringham, Victoria, a suburb of Melbourne **Sandringham railway line **Sandringham railway station * ...

Royal Estate.

Geology

The site lies on the north west Norfolk

Greensand Greensand or green sand is a sand or sandstone which has a greenish color. This term is specifically applied to shallow marine sediment that contains noticeable quantities of rounded greenish grains. These grains are called ''glauconies'' and co ...

escarpment. It is notable for a rock dating from the Lower

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...

Period Period may refer to: Common uses * Period (punctuation) * Era, a length or span of time *Menstruation, commonly referred to as a "period" Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (o ...

known as 'Dersingham Formation' which has been important in understanding the geology of the region.

Habitats and wildlife

Dersingham Bog contains three distinct habitats,

mire A peatland is a type of wetland whose soils consist of Soil organic matter, organic matter from decaying plants, forming layers of peat. Peatlands arise because of incomplete decomposition of organic matter, usually litter from vegetation, du ...

heath A heath () is a shrubland habitat found mainly on free-draining infertile, acidic soils and is characterised by open, low-growing woody vegetation. Moorland is generally related to high-ground heaths with—especially in Great Britain—a coole ...

and

woodland A woodland () is, in the broad sense, land covered with woody plants (trees and shrubs), or in a narrow sense, synonymous with wood (or in the U.S., the '' plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunli ...

. Acid valley mire is found over much of the low-lying parts of the reserve where the ground is waterlogged for most of the year. Dersingham Bog contains the largest remaining example of this kind of habitat in

East Anglia East Anglia is an area of the East of England, often defined as including the counties of Norfolk, Suffolk and Cambridgeshire, with parts of Essex sometimes also included. The name derives from the Anglo-Saxon kingdom of the East Angles, ...

. The mire's make-up of wet acid peat makes it ideal conditions for some rare and diverse species of plants such as bog asphodels ('' Narthecium ossifragum''), round-leaved sundew (''

Drosera rotundifolia ''Drosera rotundifolia'', the round-leaved sundew, roundleaf sundew, or common sundew, is a carnivorous species of flowering plant that grows in bogs, marshes and fens. One of the most widespread sundew species, it has a circumboreal distribut ...

''), white beaked sedge (''

Rhynchospora alba ''Rhynchospora alba'', the white beak-sedge, is a plant in the sedge family, Cyperaceae. It is a tufted herbaceous perennial around 50 cm tall, with white inflorescences that flower in August. The fruit of the sedge is a small achene with a ...

'') and

cranberry Cranberries are a group of evergreen dwarf shrubs or trailing vines in the subgenus ''Oxycoccus'' of the genus ''Vaccinium''. Cranberries are low, creeping shrubs or vines up to long and in height; they have slender stems that are not th ...

. The mire also has some rare insects such as the black darter dragonfly ('' Sympetrum danae'') and moths such as the light knot grass ('' Acronicta menyanthidis''). In the dark it is possible to see

glowworm Glowworm or glow-worm is the common name for various groups of insect larvae and adult larviform females that glow through bioluminescence. They include the European common glow-worm and other members of the Lampyridae, but bioluminescence al ...

s. The mire lies on shallow peat and is bordered on one side by a steep

escarpment An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion and separates two relatively level areas having different elevations. Due to the similarity, the term '' scarp'' may mistakenly be incorrectly used inte ...

containing large areas of dry heath and woodland which marks the edge of an ancient coastline. The woodland at Dersingham is quite recent and contains

Scots pine ''Pinus sylvestris'', the Scots pine (UK), Scotch pine (US), Baltic pine, or European red pine is a species of tree in the pine family Pinaceae that is native to Eurasia. It can readily be identified by its combination of fairly short, blue-gr ...

oak An oak is a hardwood tree or shrub in the genus ''Quercus'' of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisp ...

sweet chestnut The sweet chestnut (''Castanea sativa''), also known as the Spanish chestnut or European chestnut, is a species of tree in the family Fagaceae, native to Southern Europe and Asia Minor, and widely cultivated throughout the temperate world. A ...

sycamore Sycamore is a name which has been applied to several types of trees, but with somewhat similar leaf forms. The name derives from the Ancient Greek () meaning . Species of otherwise unrelated trees known as sycamore: * ''Acer pseudoplatanus'', a ...

and

birch A birch is a thin-leaved deciduous hardwood tree of the genus ''Betula'' (), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech- oak family Fagaceae. The genus ''Betula'' contains 3 ...

. The woodland glades attract birds such as

redpoll The redpoll (''Acanthis flammea'') is a species of small passerine bird in the finch family Fringillidae. It is the only species placed in the genus ''Acanthis''. It breeds in the Arctic and north temperate Holarctic tundra and taiga. The redp ...

crossbill Crossbills are birds of the genus ''Loxia'' within the finch family (Fringillidae), with six species. These birds are characterized by the mandibles with crossed tips, which gives the group its English name. Adult males tend to be red or orange ...

long-eared owl The long-eared owl (''Asio otus''), also known as the northern long-eared owlOlsen, P.D. & Marks, J.S. (2019). ''Northern Long-eared Owl (Asio otus)''. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook o ...

tree pipit The tree pipit (''Anthus trivialis'') is a small passerine bird that breeds throughout most of Europe and the Palearctic as far east as the East Siberian Mountains. It is a long-distance migrant, migrating in winter to Africa and southern Asia. ...

woodlark The woodlark or wood lark (''Lullula arborea'') is the only extant species in the lark genus ''Lullula''. It is found across most of Europe, the Middle East, western Asia and the mountains of north Africa. It is mainly resident (non-bird migrati ...

shelduck The shelducks, most species of which are found in the genus ''Tadorna'' (except for the Radjah shelduck, which is now found in its own monotypic genus ''Radjah''), are a group of large birds in the Tadorninae subfamily of the Anatidae, the biolog ...

nightjar Nightjars are medium-sized nocturnal or crepuscular birds in the family Caprimulgidae and order Caprimulgiformes, characterised by long wings, short legs, and very short bills. They are sometimes called bugeaters, their primary source of food ...

, and

sparrowhawk Sparrowhawk (sometimes sparrow hawk) may refer to several species of small hawk in the subfamily Accipitrinae The Accipitrinae are the Family (biology), subfamily of the Accipitridae often known as the "true" hawks. The subfamily contains 73 s ...

Access

All of Dersingham is open access and there are many well-marked routes to follow which provide easy access for visitors to explore this wilderness. There are car parks at Wolferton and Scissors Cross, payment via RingGo app.

Management

The reserve is in the management of

Natural England Natural England is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. It is responsible for ensuring that England's natural environment, including its land, flora and fauna, ...

Memorial to John Denver

Dersingham Bog is the location of a bench which commemorates the life of American singer-songwriter and environmentalist

John Denver Henry John Deutschendorf Jr. (December 31, 1943 – October 12, 1997), known professionally as John Denver, was an American Country music, country and Folk music, folk singer, songwriter, and actor. He was one of the most popular acoustic m ...

. It was placed there by the Friends of John Denver UK in September 2006.

References

{{SSSIs Norfolk Conservation in England Sites of Special Scientific Interest in Norfolk Ramsar sites in England Geological Conservation Review sites Special Areas of Conservation in England National nature reserves in England Nature Conservation Review sites Sandringham, Norfolk