What is "roztocze"

Roztocze (, Roztochia) is a range of hills in east-central Poland and western Ukraine which rises from the Lublin Upland and extends southeastward through Solska Wilderness and across the border into Ukrainian Podolia. Low and rolling, the range is approximately 180 km long and 14 km wide. Its highest peak within Poland is Wielki Dział at 390 meters, while in Ukraine it is Vysokyi Zamok (Lviv High Castle) at 409 m. In Poland Roztocze lies in the Lublin and Podkarpackie voivodships, while the portion in Ukraine extends all the way to the outskirts of Lviv. In 2011 UNESCO established the Roztochya Biosphere Reserve. The Polish portion of the range makes up the Roztocze National Park.