Fehntjer Tief

Oldersum is a village in the region of East Frisia, in Lower Saxony, Germany. Administratively, it is an Ortsteil of the municipality of Moormerland. Located on the north bank of the Ems estuary, Oldersum is to the southeast of Emden and the northwest of Leer. It has a population of 1,533.

Gandersum is a small village in the region of East Frisia, in Lower Saxony, Germany. Administratively, it is an Ortsteil of the municipality of Moormerland. Located on the north bank of the Ems estuary, Gandersum is to the southeast of Emden and the west of Oldersum. It has a population of 85. Gandersum was already mentioned in a list of possessions of the Werden Abbey from 930. Here, the village is mentioned as Gondrikeshem. The Church of Gandersum dates from the fourteenth century.

Petkum (East Frisian Low Saxon: Petjem) is the easternmost district (Stadtteil) of the German city of Emden, in Lower Saxony. It is located to the east of Widdelswehr. Until 1972 it was part of the Leer district, since then it has been administratively part of the city of Emden. The small East Frisian village, the oldest center located on a warft on the Eems, has a long history: in 2006 Petkum celebrated the 1200th anniversary of the village. The St. Antonius Church in the village was built in the thirteenth century. The village is connected by ferry to Ditzum on the other side of the river. The former Herrlichkeit of Petkum with its own administration and jurisdiction was first mentioned in the 10th century as Pettinghem. In 1364 the place was also recorded as Pectium. Today's spelling has been documented since 1369. The settlement's name can probably be translated as "dwelling of the people of Patjo" or "dwelling of the people of Bado".A branch of the prominent Ripperda family originated from Petkum.

Widdelswehr is a village in Lower Saxony, Germany. Together with Jarßum, it is a district (Stadtteil) of the city of Emden. It is located on the northern embankment of the Ems and to the west of Petkum. Until 1972, Widdelswehr was an independent municipality that was part of the district Leer.The village was a East Frisian chieftain's seat in the Middle Ages. The village of was probably first mentioned in the Werden land register in the 10th century as Uuerue and certainly in the 10th to 11th centuries as Uuiggeldasgihueruia. The first part of the word developed from the proper name Wigold, the second part refers to a terp (warft; an artificial dwelling mount). This means that the place name could be translated as "warft of Wigold”.

Moormerland is a municipality in the Leer District, in Lower Saxony, northwestern Germany.

Jemgum is a municipality in the Leer district, in the northwest of Lower Saxony, Germany. The area is known as Rheiderland (German) or Reiderland (Dutch). Rheiderland is located in East Friesland.

Jarßum or Jarssum is a village in Lower Saxony, Germany. Together with Widdelswehr, it is a district (Stadtteil) of the city of Emden. It is located on the northern embankment of the Ems. In the land records of the monastery of Werden, Jarßum is listed as Gerzhem in the 10th century. The name Jarßum means 'house of a distinguished man' named Jarrich or Gerrad. Variations of the name are Jarsum or Jarrsum. Today both the spelling with ß and ss are used.The village has a church from 1797. This replaced an older church from the fourteenth century.

The Kleines Meer ("Little Lake"), also called the Hieve, is a lake in East Frisia. It lies northeast of Emden on the territory of the municipality of Hinte; its southwestern shore borders on the Uphusen-Marienwehr borough of Emden, its southeastern and eastern shores on the municipality of Südbrookmerland. The Kleines Meer has an area of 93 hectares (230 acres) and is thus significantly smaller than the neighbouring Großes Meer ("Great Lake"), which lies within the municipality of Südbrookmerland. After sand was removed in the late 1970s, the formerly shallow lake had a maximum depth of 24 metres (79 ft). In July 2006 it was still up to 19 metres (62 ft) deep, albeit in the middle of the dredged basin. The Kleines Meer is popular as a leisure and recreation spot, especially with dinghy sailors, surfers, anglers and weekenders. Little holiday chalets, the so-called Meerbuden, have been built along the Emden, Hinte and Südbrookmerland shores. Unlike the Großes Meer, motor boats are allowed on the shortest route on the Hieve, but may not exceed 5 km/h (3.1 mph) in order to protect the natural habitat and the banks of the lake shore. There is a link to the rest of the East Frisian waterways network along its only outlet, the Kurze Tief; this flows into the Treckfahrtstief, which, in turn, links to the canal network of the town of Emden and eventually to the River Ems.

The Großes Meer is a naturally formed fen lake (Niedermoorsee) in north Germany that lies between Aurich and Emden near Bedekaspel in the Südbrookmerland region, on the edge of the East Frisian Geest where it transitions to the Ems marshes. The lake is the fourth largest in the state of Lower Saxony with an area of open water of about 289 hectares (710 acres) (and reed bed covering about 400 hectares (990 acres)). The Großes Meer is – apart from a few deeper spots – only 0.5 to 1.0 metre deep. It is divided into two, almost separate, bodies of water (northern and southern sections). One feature is that the average water level lies 1.4 metres below sea level due to artificial drainage. The nature reserve of South Großes Meer (Südteil Großes Meer) was established in 1974 and is surrounded by a 2,500 hectares (6,200 acres) large protected landscape. The northern part, by contrast, is used as a leisure and recreation area and has facilities for angling and water sports. It may not be used by motor boats, however. With its extensive belt of reed-beds and the adjacent wetlands the Großes Meer and its surrounds are a breeding area and habitat of regional importance. Black-tailed godwit, snipe, lapwing, short-eared owl, marsh harrier, hen harrier, bittern, sedge warbler, bluethroat and reed bunting are a few of the species of breeding bird that are important from a conservation perspective. In winter huge flocks of greylag geese and greater white-fronted geese shelter here. Southwest of the Großes Meer lies the Kleines Meer, also called the Hieve. West of the northern section of the Großes Meer is the Loppersumer Meer. The former Siersmeer and Heerenmeeder Meer in the southern part of the nature reserve have completely silted up and now form a large expanse of sedge with transitions to grey willow bushes.

Uphusen is a village in Lower Saxony, Germany. The East Frisian village is currently a borough (Stadtteil) of the city of Emden together with Marienwehr. Uphusen was originally a village built on a warft. The current warft, with the church on it, was created from three smaller mounds. The current church dates from the fifteenth century. This replaced an earlier church from the thirteenth century that was said to have been demolished and rebuilt in Veenhusen. The name of the place is a combination of up ('higher') and husen ('houses'), therefore meaning “higher located houses”.

The Ems (German: Ems; Dutch: Eems) is a river in northwestern Germany. It runs through the states of North Rhine-Westphalia and Lower Saxony, and discharges into the Dollart Bay which is part of the Wadden Sea. Its total length is 362.4 kilometres (225.2 mi). The state border between the Lower Saxon area of East Friesland (Germany) and the province of Groningen (Netherlands), whose exact course was the subject of a border dispute between Germany and the Netherlands (settled in 2014), runs through the Ems estuary.

Marienwehr is a small village in Lower Saxony, Germany. The East Frisian village is currently a borough (Stadtteil) of the city of Emden together with Uphusen. The village is located on a warft Shortly before the start of the Second World War and especially in the years immediately afterwards, new settlement houses were built northeast of the village center, on the shore of the lake called Kleines Meer ('Little Lake').