The
Kraków-Częstochowa Upland, also known as the
Polish Jurassic Highland or
Polish Jura(
Polish:
Jura Krakowsko-Częstochowska), is part of the
Jurassic System of south–central
Poland, stretching between the cities of
Kraków,
Częstochowa and
Wieluń.The Polish Jura consists of a hilly landscape with
Jurassic limestone rocks, cliffs, valleys and vast
limestone formations, featuring some 220 caves. (Wikipedia)