Aqualate Mere is the largest natural lake

Mere (lake)

Mere in English refers to a lake that is broad in relation to its depth, e.g. Martin Mere. A significant effect of its shallow depth is that for all or most of the time, it has no thermocline.- Etymology :...

 in the English Midlands

English Midlands

The Midlands, or the English Midlands, is the traditional name for the area comprising central England that broadly corresponds to the early medieval Kingdom of Mercia. It borders Southern England, Northern England, East Anglia and Wales. Its largest city is Birmingham, and it was an important...

 and is managed as a National Nature Reserve

National Nature Reserves in England

National Nature Reserves in England are managed by Natural England and are key places for wildlife and natural features in England. They were established to protect the most important areas of habitat and of geological formations...

 (NNR) by Natural England

Natural England

Natural England is the non-departmental public body of the UK government responsible for ensuring that England's natural environment, including its land, flora and fauna, freshwater and marine environments, geology and soils, are protected and improved...

. It is a remnant of the prehistoric Lake Lapworth

Lake Lapworth

Lake Lapworth existed in England in the Ice Age when ice from Wales and the north blocked the outlet of the River Dee near the site of Chester. The Dee backed up, forming Lake Lapworth, until it overflowed southwards and cut the Ironbridge gorge, permanently diverting part of the Dee drainage into...

.

The Mere lies within the borough of Stafford

Stafford (borough)

Stafford is a local government district with borough status in Staffordshire in England. It is named after and includes the town of Stafford. It also includes the smaller town of Stone and numerous villages....

 in Staffordshire

Staffordshire

Staffordshire is a landlocked county in the West Midlands region of England. For Eurostat purposes, the county is a NUTS 3 region and is one of four counties or unitary districts that comprise the "Shropshire and Staffordshire" NUTS 2 region. Part of the National Forest lies within its borders...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

, some 2 km east of the market town

Market town

Market town or market right is a legal term, originating in the medieval period, for a European settlement that has the right to host markets, distinguishing it from a village and city...

 of Newport

Newport, Shropshire

Newport is a market town in the borough of Telford and Wrekin and ceremonial county of Shropshire, England. It lies some north of Telford and some west of Stafford sitting on the Shropshire/Staffordshire border...

, Shropshire

Shropshire

Shropshire is a county in the West Midlands region of England. For Eurostat purposes, the county is a NUTS 3 region and is one of four counties or unitary districts that comprise the "Shropshire and Staffordshire" NUTS 2 region. It borders Wales to the west...

. It is within the grounds of Aqualate Hall

Aqualate Hall

Aqualate Hall a 20th century country house, is located in Staffordshire, England, some 3.5 km east of the market town of Newport, Shropshire and 17 km west of the County town of Stafford...

, a country house

English country house

The English country house is a large house or mansion in the English countryside. Such houses were often owned by individuals who also owned a London house. This allowed to them to spend time in the country and in the city—hence, for these people, the term distinguished between town and country...

, with a landscaped deer park

Medieval deer park

A medieval deer park was an enclosed area containing deer. It was bounded by a ditch and bank with a wooden park pale on top of the bank. The ditch was typically on the inside, thus allowing deer to enter the park but preventing them from leaving.-History:...

.

Although large in extent (1.5 km long and 0.5 km wide), the Mere is remarkably shallow and is nowhere much more than one metre deep. Aqualate Mere is an example of an esker

Esker

An esker is a long winding ridge of stratified sand and gravel, examples of which occur in glaciated and formerly glaciated regions of Europe and North America...

 system (rare in the Midlands) formed by glacial meltwaters during the late Devensian glaciation, about 50,000 years ago. The depression in which the Mere lies, thought to be a kettle hole, and the surrounding higher ground which comprises glacial

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

 sand

Sand

Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.The composition of sand is highly variable, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal...

 and gravel

Gravel

Gravel is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel can be sub-categorized into granule and cobble...

 deposits were all formed at the same time.

The Mere supports diverse fish

Fish

Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...

 and bird

Bird

Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

 populations, including large numbers of wintering and breeding wildfowl and breeding Eurasian Curlew

Eurasian Curlew

The Eurasian Curlew, Numenius arquata, is a wader in the large family Scolopacidae. It is one of the most widespread of the curlews, breeding across temperate Europe and Asia...

 and Common Snipe

Common Snipe

The Common Snipe is a small, stocky wader native to the Old World. The breeding habitat is marshes, bogs, tundra and wet meadows throughout northern Europe and northern Asia...

. Together with the surrounding land, it is also important for its botanical

Plant

Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or...

 and invertebrate

Invertebrate

An invertebrate is an animal without a backbone. The group includes 97% of all animal species – all animals except those in the chordate subphylum Vertebrata .Invertebrates form a paraphyletic group...

 communities. Mammals found on the NNR include Polecat

European polecat

The European polecat , also known as the black or forest polecat , is a species of Mustelid native to western Eurasia and North Africa, which is classed by the IUCN as Least Concern due to its wide range and large numbers. It is of a generally dark brown colour, with a pale underbelly and a dark...

, Water Vole and Harvest Mouse

Harvest Mouse

The Harvest Mouse, Micromys minutus, is a small rodent native to Europe and Asia. It is typically found in fields of cereal crops such as wheat and oats, in reed beds and in other tall ground vegetation such as long grass and hedgerows. It has reddish-brown fur with white underparts and a naked,...

, together with bats such as Pipistrelle, Daubenton's

Daubenton's bat

Daubenton's Bat, Myotis daubentonii, is a Eurasian bat with quite short ears. It ranges from Britain to Japan and is considered to be increasing its numbers in many areas.The name commemorates the French naturalist Louis-Jean-Marie Daubenton....

, Natterer's

Natterer's bat

Natterer's bat is a European bat with pale wings. It has brown fur, also seen on the leg wing membrane, tending to white on its underside...

, Brandt's

Brandt's Bat

Brandt's Bat is a species of vesper bat in the Vespertilionidae family.It is found throughout most of Europe and parts of Asia.It is named for the German zoologist Johann Friedrich von Brandt.-Echolocation:...

 and Whiskered

Whiskered bat

The whiskered bats Myotis mystacinus and related species, are small European bats with long fur. Although uncommon, M. mystacinus is often found around human habitation and around water; it is similar to Brandt's bat Myotis brandtii, from which it was distinguished as a separate species only in...

.

Its name came from Anglo-Saxon Āc-gelād = "oak grove".