Ostrava Basin

Ostrava Basin (, , ) is a lowland, located in the eastern Czech Republic and southern Poland. It has the size of around , of which in Poland. Its name comes from the city of Ostrava. The coal deposits were discovered in the late 18th century, as a result in the 19th century the area was heavily industrialized, and henceforth urbanised. Its mean height is above sea level (between above sea level).