Soła River

The Soła is a right-bank tributary of the Vistula in southern Poland, the first large Carpathian tributary on its right bank. The river is 88.9 km long, its basin covers about 1,400 km² (Ukrainian sources give 1,375 km²) and its mean flow is 18.8 m³/s. The Soła flows through the Żywiec Basin, the Beskid Mały, the Silesian Foothills and the Oświęcim Basin and joins the Vistula near Oświęcim, increasing its flow by about 59% — more than any other tributary in Poland. In flood potential it is second only to the Dunajec among the Vistula's Carpathian tributaries.

The course: from source to mouth

The Soła has no clear source: it is formed by two mountain streams. The Solanka (Słanica) rises at about 750 m on the slopes of the Graniczne pass below the main ridge of the Western Carpathians — the Great European Watershed — and flows down a wide valley through Sól, which gave it its name thanks to a salt spring. The Czerna begins at about 717 m in Koniaków on the southern slopes of Ochodzita. At Dolna Sól, at about 530 m, the two streams meet to form the Soła.

The river then flows east to Rajcza and from there north through Milówka and Węgierska Górka to Żywiec. The upper, mountain course has a gradient of 4 to 15‰, the lower course in the Wilamowice Foothills and the Oświęcim Basin is much calmer. The basin is very asymmetric: the right-bank tributaries collect three times more water than the left-bank ones, and the largest of them, the Koszarawa, is only 6 km shorter than the Soła itself. Other tributaries include the Woda Ujsolska, Rycerka, Bystra, Żabniczanka, Łękawka and Kocierzanka. Below Żywiec the Soła fills Lake Żywiec (Jezioro Żywieckie) at Tresna, crosses the Beskid Mały in a narrow gorge holding Lake Międzybrodzie (Jezioro Międzybrodzkie) between Międzybrodzie Bialskie and Porąbka, and below that the smaller Lake Czaniec. The river then passes Kęty and joins the Vistula.

What to see along the river

• Żywiec castles: Old Castle, Habsburg Palace and park — above the Soła in the town centre.
• Lake Żywiec (Jezioro Żywieckie) — the largest reservoir of the cascade (1966, 94.6 million m³) with its dam at Tresna.
• Lake Międzybrodzie (Jezioro Międzybrodzkie) — the reservoir in the gorge behind the 1936 Porąbka dam.
• Żar — a mountain with a funicular and the upper reservoir of a pumped-storage plant above the Soła gorge.

The river and people

Timber was floated down the Soła from the second half of the 15th century at the latest: Piotr Komorowski, owner of the Żywiec estates, received from King Casimir Jagiellon a privilege of free floating without tolls. Logs were bound into rafts and sent to Oświęcim or even Kraków; the rafts gathered at Międzybrodzie, from where hired raftsmen, called «wodzowie» here, led by a guide called the «błaut», sailed on the spring flood. According to Wincenty Pol, at a favourable depth the trip from Żywiec to the Vistula took 15–16 hours, but such water was hard to catch: in shallow water the rafts grounded on riffles, in high water they became unmanageable. Long-raft floating ended after the Bielsko – Żywiec (1878) and Zwardoń – Żywiec – Sucha (1884) railways were built, and the last firewood float on the Soła took place in 1912, when a flood destroyed the floating installations.

Nature and safety

The Soła basin lies in a zone of heavy rainfall — 750 to 1,200 mm a year — and each square kilometre yields almost four times more runoff than the Polish average. Dangerous floods struck in 1884, 1903, 1925, 1958, 1960, 1970, 1996 and 1997; the worst came on 29 June 1958, when the flow at Żywiec reached 1,250 m³/s and the water destroyed the town centre and the bridge to Zabłocie. Since then the river has been tamed by the Soła cascade, Poland's first complete river cascade: three reservoirs protect against floods, supply drinking water to Katowice, Tychy and Bielsko-Biała and generate electricity. All water sports are banned on Lake Czaniec, a drinking-water source. Summer floods here are violent though short, so keep away from the bed after downpours. Mountain rescue is GOPR: 985 or +48 601 100 300; the general emergency number is 112.

Nearby: peaks, trails, huts

From Sól the trail Sól – Rycerka climbs to the ridge, from Rajcza Rajcza – Romanka, from Milówka Milówka – Cięcina, and above the gorge through the Beskid Mały runs the Mały Szlak Beskidzki.

Photos: Aqalexor, CC BY-SA 4.0, Wikimedia Commons; Adrian Tync (lub moja matka Teresa Tync), CC BY-SA 4.0, Wikimedia Commons; Lilithbb, CC BY-SA 3.0 pl, Wikimedia Commons; Silar, CC BY-SA 4.0, Wikimedia Commons; Marek Mróz, CC BY 4.0, Wikimedia Commons; Ciacho5, CC BY-SA 4.0, Wikimedia Commons.