▁Pennsylvania ▁Route ▁ 5 0 2 . ▁Here , ▁it ▁receives ▁the ▁trib ut ary ▁R att les nake ▁Creek ▁from ▁the ▁right ▁and ▁flows ▁between ▁high ▁hills . ▁On ▁the ▁northern ▁side ▁of ▁the ▁res er voir , ▁the ▁stream ▁flows ▁north , ▁receiving ▁the ▁trib ut ary ▁Green ▁Run ▁from ▁the ▁right ▁before ▁turning ▁west - s outh west . ▁A ▁few ▁miles ▁further ▁down stream , ▁it ▁passes ▁through ▁the ▁Spring ▁Brook ▁In take ▁before ▁exit ing ▁L ack aw anna ▁County . ▁ ▁Upon ▁exit ing ▁L ack aw anna ▁County , ▁Spring ▁Brook ▁enters ▁Pitt ston ▁Township , ▁Lu zer ne ▁County . ▁It ▁receives ▁the ▁trib ut ary ▁Monument ▁Creek ▁from ▁the ▁left ▁and ▁turns ▁north - n orth west ▁for ▁a ▁few ▁miles , ▁flow ing ▁alongside ▁Pennsylvania ▁Route ▁ 5 0 2 . ▁On ▁this ▁stretch , ▁it ▁leaves ▁behind ▁the ▁hills ▁that ▁it ▁flows ▁through , ▁cross es ▁Pennsylvania ▁Route ▁ 5 0 2 , ▁and ▁ex its ▁Lu zer ne ▁County . ▁Upon ▁exit ing ▁Lu zer ne ▁County , ▁the ▁stream ▁enters ▁Mo os ic , ▁L ack aw anna ▁County ▁and ▁continues ▁flow ing ▁north - n orth west ▁and ▁receives ▁the ▁trib ut ary ▁C ove y ▁Sw amp ▁Creek ▁from ▁the ▁right . ▁The ▁stream ▁then ▁turns ▁west - s outh west ▁for ▁a ▁short ▁distance ▁before ▁turning ▁south ▁and ▁then ▁west , ▁crossing ▁Inter state ▁ 8 1 . ▁It ▁then ▁turns ▁north west ▁for ▁a ▁few ▁t