River Danube in the context of "Donaueschingen"

Bogen (German pronunciation: [ˈboːɡn̩] ; Central Bavarian: Boong) is a town in the district of Straubing-Bogen in Bavaria, Germany. It has a population of 10,105. Bogen is located between the southern slopes of the Bavarian Forest and the River Danube. The town lies at the foot of the Bogenberg, a hill immediately on the Danube. The pilgrimage church of the Assumption of the Virgin Mary (Mariä Himmelfahrt) on the Bogenberg is the destination of one of the oldest pilgrimages for Saint Mary in Bavaria (first mentioned in 1103).

This was also the seat of power of the Counts of Bogen, who died out in 1242, before the fief passed over to the Wittelsbachs. Since 1958, the German Army has been based at the Graf-Aswin-Kaserne military barracks in Bogen. The barracks are home to army engineers and are used for training medics.

Raetia or Rhaetia (/ˈriːʃ(i)ə/ REE-sh(ee-)ə, Latin: [ˈrae̯.ti.a]) was a province of the Roman Empire named after the Rhaetian people. It bordered on the west with the country of the Helvetii, on the east with Noricum, on the north with Vindelicia, on the south-west with Transalpine Gaul and on the south with Venetia et Histria, a region of Roman Italy.

It thus comprised the districts occupied in modern times by eastern and central Switzerland (containing the Upper Rhine and Lake Constance), southern Germany (Bavaria and most of Baden-Württemberg), Vorarlberg and the greater part of Tyrol in Austria, and part of northern Lombardy in Italy. The region of Vindelicia (today eastern Württemberg and western Bavaria) was annexed to the province at a later date than the others. The northern border of Raetia during the reigns of emperors Augustus and Tiberius was the River Danube. Later the Limes Germanicus marked the northern boundary, stretching for 166 km north of the Danube. Raetia was connected to Italy across the Alps over the Reschen Pass, by the Via Claudia Augusta.

Ulm (German pronunciation: [ʊlm] ) is the sixth-largest city of the southwestern German state of Baden-Württemberg, and with around 129,000 inhabitants, it is Germany's 60th-largest city.

Ulm is located on the eastern edges of the Swabian Jura mountain range, on the upper course of the River Danube, at the confluence with the small Blau Stream, coming from the Blautopf in the west. The mouth of the Iller also falls within Ulm's city limits. The Danube forms the border with Bavaria, where Ulm's twin city Neu-Ulm lies. The city was part of Ulm until 1810, and Ulm and Neu-Ulm have a combined population of around 190,000. Ulm forms an urban district of its own (Stadtkreis Ulm), and is the administrative seat of the Alb-Donau-Kreis, the district that surrounds it on three sides, but which the city itself is not a part of. Ulm is the overall 11th-largest city on the river Danube, and the third-largest German Danubian city after Regensburg and Ingolstadt.

The Danubian Limes (German: Donaulimes), or Danube Limes, refers to the Roman military frontier or limes which lies along the River Danube in the present-day German state of Bavaria, in Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria and Romania.

The Danube was not always or everywhere used by the Romans as the military frontier which was moved north or south in some locations according to military conquests, but it was maintained in many places as a fairly permanent defensive structure for long periods. The border was reinforced with numerous watchtowers, legion camps (castra) and forts (castella). Due to the boggy and dendritic nature of the Danube's river banks no border ramparts were built, unlike the Neckar-Odenwald Limes in Germany. The camps were built in the mid-1st century. Later, under Trajan, the camps, which had originally only been surrounded by earthen embankments, were enclosed by stone walls.

The Triesting (Austrian German pronunciation: [ˈtriːstɪŋ]) is a river of Lower Austria, in the southeastern part of the Vienna Woods. Its drainage basin is 388 km (150 sq mi).

The Triesing has a length of 63 km (39 mi). It discharges into the smaller Schwechat at Achau and is part of the catchment area of the River Danube.