7 0 s , ▁with ▁most ▁tal ks ▁reaching ▁dead ▁ends . ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Gr ig gs ville - Per ry ▁C US D ▁# 4 ▁ ▁Category : Public ▁high ▁schools ▁in ▁Illinois ▁Category : Sch ools ▁in ▁Pi ke ▁County , ▁Illinois <0x0A> </s> ▁Lim estone ▁Run ▁( also ▁known ▁as ▁Bull ▁Run ) ▁is ▁a ▁trib ut ary ▁of ▁the ▁West ▁Branch ▁Sus que h anna ▁River ▁in ▁Union ▁County , ▁Pennsylvania . ▁It ▁is ▁ ▁in ▁length . ▁The ▁stream ▁flows ▁through ▁East ▁Buff alo ▁Township , ▁Buff alo ▁Township , ▁and ▁Lewis burg . ▁Ludwig ▁Der r ▁once ▁constructed ▁a ▁mill ▁on ▁the ▁stream . ▁Lim estone ▁Run ▁has ▁one ▁named ▁trib ut ary : ▁Miller ▁Run . ▁ ▁Cour se ▁The ▁head w aters ▁of ▁Lim estone ▁Run ▁are ▁under ground . ▁The ▁stream ▁begins ▁on ▁the ▁western ▁border ▁of ▁East ▁Buff alo ▁Township ▁and ▁the ▁eastern ▁border ▁of ▁Buff alo ▁Township , ▁near ▁the ▁community ▁of ▁L och iel . ▁The ▁stream ▁flows ▁n ortheast ▁for ▁a ▁short ▁distance , ▁crossing ▁Pennsylvania ▁Route ▁ 4 5 , ▁and ▁then ▁turns ▁west , ▁following ▁Pennsylvania ▁Route ▁ 4 5 . ▁After ▁several ▁miles , ▁it ▁turns ▁briefly ▁sout heast ▁and ▁cross es ▁Pennsylvania ▁Route ▁ 4 5 ▁before ▁turning ▁n ortheast ▁and ▁crossing ▁the ▁state ▁route ▁again . ▁It ▁then ▁enters ▁Lewis burg ▁and ▁turns ▁sout heast , ▁crossing ▁U . S . ▁Route ▁ 1 5 ▁and ▁Pennsylvania ▁Route ▁ 4 5