Trójmorski Wierch (, in

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...

until 1946 Klepacz, cs, Klepáč, german: Klappersteine) is a peak in the

Snieznik Mountains The Snieznik Mountains, sometimes also Śnieżnik Mountains ( pl, Masyw Śnieżnika, cs, Králický Sněžník, german: Glatzer Schneegebirge) are a massif in the Eastern Sudetes on the border of the Czech Republic and Poland. On the Polish side ...

range. It lies on the

Czech Republic–Poland border The Czech-Polish border is the inter-state border between the Czech Republic and the Republic of Poland. The Czech Republic is one of the seven countries currently bordering Poland. This condition persists since January 1, 1993, when Czechoslo ...

. It is a

triple point In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium.. It is that temperature and pressure at which the subli ...

of the European watershed. Water from the peak may flow either to the

Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and from ...

via

Eastern Neisse The Eastern Neisse, also known by its Polish name of Nysa Kłodzka (german: Glatzer Neiße, cs, Kladská Nisa), is a river in southwestern Poland, a left tributary of the Oder, with a length of 188 km (21st longest) and a basin area of 4,570& ...

and

Oder The Oder ( , ; Czech, Lower Sorbian and ; ) is a river in Central Europe. It is Poland's second-longest river in total length and third-longest within its borders after the Vistula and Warta. The Oder rises in the Czech Republic and flows thr ...

, to the

Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Roma ...

via Morava and

Danube The Danube ( ; ) is a river that was once a long-standing frontier of the Roman Empire and today connects 10 European countries, running through their territories or being a border. Originating in Germany, the Danube flows southeast for , pa ...

and to the

North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S ...

via

Orlice Orlice (german: Adler) is a river in the Czech Republic. It is tributary of the Labe (''Elbe'') river, which it enters in the city of Hradec Králové. Its main tributaries are Divoká Orlice and Tichá Orlice. Part of the Divoká Orlice acts as ...

and

Elbe The Elbe (; cs, Labe ; nds, Ilv or ''Elv''; Upper and dsb, Łobjo) is one of the major rivers of Central Europe. It rises in the Giant Mountains of the northern Czech Republic before traversing much of Bohemia (western half of the Czech Repu ...

. The current Polish name, meaning the Three Seas Peak, is derived from this hydrological feature. It was introduced in 1946 by

Mieczysław Orłowicz Mieczysław () or Mečislovas (Lithuanian) is a Slavic name of Polish origin and consists of two parts: miecz "sword", and sław "glory, famous". Feminine form: Mieczysława. Alternate form: Mieszko. This name may refer to: People Mečislovas * ...

. The Czech, German and former Polish names are based on the clapping sound made by loose stones scattered on the peak in high winds or upon stepping on them.

References

Mountains of Poland Mountains and hills of the Czech Republic {{Europe-mountain-stub