The name of the city, known worldwide thanks to its stellar achievements in the field of solar activity research, is derived from the "little river Úpa".
The city stretches along both banks of the Úpa River in a gorge valley bordered by the "U lipek" hill and the forests of Svobodny, Milešovka, Velbaba, Skalka, Dlouhý Záhony and Rtyňka. The area ...