Grayvoronsky District
Grayvoronsky District () is an administrative district (raion), one of the twenty-one in Belgorod Oblast, Russia. Municipally, it is incorporated as Grayvoronsky Municipal District. It is located in the west of the oblast. The area of the district is . Its administrative center is the town of Grayvoron. Population: 31,567 (2002 Census). The population of Grayvoron accounts for 21.4% of the district's total population. Geography. Grayvoronsky District sits at the southwest corner of Belgorod Oblast, on the border with Ukraine. It is bordered on the south and west by Kharkiv Oblast and Sumy Oblast (both of Ukraine), on  the north by Krasnogvardeysky District, Belgorod Oblast and Rakityansky District, and on the east by Borisovsky District. The administrative center of the district is the town of Grayvoron. The district is west of the city of Belgorod, and is northwest of the Ukrainian city of Kharkiv. The terrain is hilly plain averaging above sea level; the district lies on the Orel-Kursk plateau of the Central Russian Upland. The major river through the district is the Vorskla River, which flows east to west through the district, eventually to join the Dnieper River.