0 ▁ha ) ▁ ▁H rus he v sk aya . ▁ ▁Center ed ▁on ▁the ▁H rus he v ska ▁G orge , ▁and ▁a ▁large ▁p ond ▁( C ata ar ). ▁ ▁( 2 8 8 ▁ha ) ▁The ▁reserve ▁is ▁immediately ▁on ▁the ▁eastern ▁border ▁of ▁Ukraine ▁with ▁Russia . ▁ ▁Ge olog ically , ▁it ▁is ▁on ▁the ▁northern ▁edge ▁of ▁the ▁Don et sk ▁fol ded ▁country , ▁character ized ▁by ▁sand stone , ▁lim estone , ▁and ▁sand y ▁sh ales ▁of ▁the ▁Car bon ifer ous ▁Period . ▁ ▁The ▁terrain ▁is ▁r idge - h ollow , ▁with ▁elev ations ▁ 1 5 0 - 2 3 0 ▁meters ▁above ▁sea ▁level . ▁ ▁Cl imate ▁and ▁e cor eg ion ▁The ▁climate ▁of ▁the ▁Prov all ia ▁Ste ppe ▁reserve ▁is ▁Hum id ▁contin ental ▁climate , ▁warm ▁summer ▁( K ö ppen ▁climate ▁classification ▁( D fb )). ▁This ▁climate ▁is ▁character ized ▁by ▁large ▁season al ▁temperature ▁differential s ▁and ▁a ▁warm ▁summer ▁( at ▁least ▁four ▁months ▁aver aging ▁over ▁, ▁but ▁no ▁month ▁aver aging ▁over ▁. ▁ ▁The ▁reserve ▁is ▁located ▁in ▁the ▁Pont ic – C asp ian ▁ste ppe ▁e cor eg ion , ▁a ▁region ▁that ▁covers ▁an ▁exp anse ▁of ▁grass lands ▁stretch ing ▁from ▁the ▁northern ▁sh ores ▁of ▁the ▁Black ▁Sea ▁to ▁western ▁Kaz akh stan . ▁ ▁Flora ▁and ▁fa una ▁Appro xim ately ▁ 8 8 % ▁of ▁the ▁site