ural ▁area ▁of ▁Virginia ▁and ▁West ▁Virginia . ▁Some ▁kar st ▁top ography ▁is ▁evident , ▁and ▁the ▁lim estone ▁is ▁h oney com bed ▁with ▁c aves . ▁ ▁Several ▁have ▁been ▁developed ▁as ▁commercial ▁tour ist ▁attra ctions , ▁including ▁L ur ay ▁Ca ver ns , ▁Sh en ando ah ▁Ca ver ns , ▁and ▁Sky line ▁Ca ver ns . ▁ ▁On ▁the ▁river bank ▁a ▁few ▁miles ▁above ▁Har per ' s ▁Fer ry ▁is ▁said ▁to ▁be ▁a ▁cave ▁with ▁an ▁opening ▁just ▁large ▁enough ▁for ▁a ▁mounted ▁r ider ▁to ▁s que e ze ▁through . ▁It ▁w iden ed ▁in ▁the ▁interior ▁to ▁a ▁sp a cious ▁room ▁where ▁hundreds ▁of ▁Col . ▁John ▁Mos by ' s ▁ra iding ▁troops ▁are ▁said ▁to ▁have ▁hidden ▁from ▁purs uing ▁Union ▁caval ry . ▁ ▁Environment al ▁issues ▁Since ▁ 2 0 0 5 , ▁the ▁Sh en ando ah ▁River ▁has ▁experienced ▁several ▁spring time ▁fish ▁k ills ▁that ▁have ▁affected ▁several ▁of ▁its ▁native ▁fish ▁species . ▁In ▁ 2 0 0 5 , ▁red bre ast ▁sun fish ▁and ▁small mouth ▁bass ▁along ▁a ▁ ▁stretch ▁of ▁the ▁South ▁F ork ▁Sh en ando ah ▁River ▁began ▁dying ▁of ▁les ions ▁caused ▁by ▁b acter ia ▁and ▁fung i . ▁ ▁Although ▁the ▁fish ▁kill ▁eventually ▁w ip ed ▁out ▁ 8 0 % ▁of ▁the ▁adult ▁red bre ast ▁sun fish ▁and ▁small mouth ▁bass , ▁ju ven ile ▁populations ▁appeared ▁to