Mura River

The Mura is one of the key rivers of the eastern Alpine and Pannonian region, preserving remarkable natural dynamics and an important cultural‑historical role along its course through Slovenia. It is approximately 464 kilometres long, of which 95 kilometres run along or near the Slovenian border, while about 28 kilometres flow exclusively through Slovenian territory (mainly in the areas between Sladki Vrh, Cmurek and Ceršak, and near Petanjci and Krog).

The river originates in the Austrian federal state of Styria, in the high‑mountain environment of the Niedere Tauern. Its highest sources lie within the Murursprung nature reserve below Zirbitzkogel (2396 m), where numerous karst springs and torrential streams merge to form the upper course. In this section, the Mura is a typical mountain river with a steep gradient, fast‑flowing water and a pronounced snow‑rain hydrological regime shaped by spring snowmelt and abundant autumn precipitation.

As the Mura leaves the Alpine region and flows through the broader valley between Judenburg, Murau and Graz, it gradually loses its torrential character. Upon entering Slovenia near Gornja Radgona, the river already displays a distinctly different hydrological profile: the channel widens, the flow slows, and the average discharge reaches approximately 150–170 m³/s, with significant fluctuations during flood events. It is here that the river begins its characteristic meandering, forming wide bends, oxbow lakes, floodplains and extensive riparian forests. These geomorphological processes have shaped the distinctive landscape of Pomurje, one of the most naturally preserved floodplain regions in Slovenia.

Historically, the Mura played an important economic and transport role. In its upper course it powered mills, sawmills and forges, while in the lowland section it served as a transport route for timber rafting and the movement of goods. Until the 19th century it remained partly navigable for smaller vessels, and numerous ferries enabled river crossings where bridges were absent. Today, economic use is oriented mainly towards sustainable activities: traditional floating mills are preserved, the river is important for drinking‑water supply, fisheries, nature‑based tourism, and the conservation of floodplain forests and wetlands, which rank among the most valuable ecosystems in the country.

The most important tributaries of the Mura include: – Murica, – Ščavnica, – Ledava, – Črnec, – Trnava, – and major Austrian tributaries such as Liesing and the Raab (Raba), which joins the Mura in Hungary.

The Mura thus represents a clear transition between the Alpine and Pannonian worlds – a river that transforms from a dynamic mountain torrent into a broad, calm lowland watercourse, while preserving exceptional natural diversity and a rich cultural heritage that has shaped life along its banks for centuries.

The Mura enters Slovenia at Gornja Radgona, where it finally transforms from an Alpine foreland river into a typical lowland watercourse. Within Slovenia, approximately 28 kilometres of the river flow exclusively through Slovenian territory, while the remaining sections form the Slovenian–Austrian and Slovenian–Croatian borders. The channel is wide, the flow slow, and the river profile distinctly flat. The Mura winds through the extensive floodplain of Pomurje, forming numerous meanders, oxbow lakes, and floodplain forests.

From Gornja Radgona, the river flows southeast past Radenci, Murska Sobota (located a few kilometres from the river), Petanjci, Krog, Bakovci, Ižakovci, Melinci, and Beltinci, before leaving Slovenian territory near Hotiza and continuing toward Lendava and the Hungarian plain.

Hydrology

In Slovenia, the Mura has an average discharge of 150–170 m³/s, though seasonal fluctuations are considerable. Spring snowmelt in the Alps produces high water levels, while autumn rainfall adds further flood peaks. The river has a distinctly meandering character, meaning that the channel constantly shifts, eroding banks, depositing sediments, and creating new geomorphological features.

The Mura floodplain is one of the most intact in Slovenia. It spans several hundred metres to several kilometres in width and plays a crucial role in retaining high waters and providing natural flood protection.

Historical Role as a Border River

For centuries, the Mura served as an important boundary line between political and cultural regions. During the era of the Austrian Empire, it formed the natural border between Inner Austria (Styria) and Hungary, influencing the development of settlements, trade routes, and administrative divisions. The river was both a connector and a divider: it enabled trade, timber rafting, and the transport of goods, yet clearly marked the frontier between two historical lands.

Numerous ferries (for example in Ižakovci, Melinci, and Krog) were essential transport links, as bridges were scarce. Ferrymen held an important profession, and river navigation connected communities on both sides of the river.

Important Settlements and Landmarks along the River

– Gornja Radgona – historic town at the river’s entry into Slovenia, known for fairs and viticulture. – Radenci – spa town with a long tradition of mineral waters. – Ižakovci – the “Island of Love,” floating mill on the Mura, traditional ferry. – Beltinci – area of extensive floodplain forests and wetlands. – Melinci, Krog, Petanjci – villages closely tied to the river, with preserved floodplains and oxbow lakes. – Hotiza – the southern point where the Mura leaves Slovenia, an important area for birds and wetland habitats.

Notable natural features include: – Murska šuma – one of the largest preserved floodplain forests in Slovenia. – The Island of Love in Ižakovci – cultural and tourist site with a reconstructed floating mill. – Numerous oxbow lakes – key elements of the river landscape.

Oxbow Lakes of the Mura and Their Ecological Importance

Formation of Oxbow Lakes

Oxbow lakes form when a meandering river cuts through its own bend and abandons the old channel. The remaining section fills with water, creating a standing or slow‑flowing lake separated from the main river. Due to its natural dynamics, the Mura has created dozens of oxbow lakes, among the most notable: – Ižakovci oxbow, – Melinci oxbow, – Krog oxbow, – Beltinci oxbow, – Oxbows in Murska šuma.

Ecological Importance

Oxbow lakes are among the most biodiverse freshwater habitats in Slovenia. Their ecological value is exceptional:

• Habitat diversity: they provide living space for amphibians, insects, fish, birds, and aquatic plants absent from the main river channel.

• Fish spawning grounds: many species (pike, rudd, tench) spawn in the calm, shallow waters of oxbows.

• Birdlife: oxbows are crucial for herons, ducks, grebes, kingfishers, and numerous migratory species.

• Vegetation: calm waters support rare aquatic and wetland plants such as water lilies, bulrush, sedges, and aquatic mosses.

• Natural flood protection: oxbows act as retention basins during high water, reducing flood risk.

• Climate function: wetlands along the Mura store carbon and help regulate the local microclimate.

For these reasons, oxbow lakes are among the most important natural features of the Mura landscape and a key factor in the area’s inclusion in Natura 2000 and other conservation regimes.

Although the Mura’s course through Slovenia is relatively short, it is exceptionally rich in natural, cultural, and historical significance. The river has shaped the identity of Pomurje, created a unique floodplain landscape, and preserved one of Slovenia’s most valuable wetland ecosystems. Oxbow lakes, floodplain forests, and traditional river use form the core of the Mura’s outstanding natural heritage.