, ▁formed ▁by ▁a ▁dam ▁and ▁used ▁for ▁flo od ▁control ▁and ▁recre ation . ▁It ▁is ▁located ▁in ▁Adams ▁Township , ▁S ny der ▁County , ▁Pennsylvania ▁near ▁the ▁town ▁of ▁Tro x el ville . ▁The ▁lake ▁and ▁sh or eline ▁are ▁owned ▁and ▁managed ▁by ▁the ▁Pennsylvania ▁Fish ▁and ▁Bo at ▁Commission ▁( PF BC ) ▁for ▁recre ational ▁fish ing ▁and ▁bo ating . ▁Fish ▁species ▁present ▁include ▁northern ▁pi ke , ▁larg em outh ▁bass , ▁wal ley e , ▁black ▁cra pp ie , ▁and ▁bl u eg ill . ▁ ▁Walker ▁Lake ▁is ▁located ▁on ▁the ▁North ▁Branch ▁Middle ▁Creek , ▁which ▁is ▁a ▁trib ut ary ▁to ▁Middle ▁Creek ▁within ▁the ▁Sus que h anna ▁River ▁bas in . ▁North ▁Branch ▁Middle ▁Creek ▁was ▁imp ounded ▁in ▁ 1 9 7 0 ▁creating ▁the ▁ 2 3 9 ▁a cre ▁( 0 . 9 7   km ² ) ▁lake , ▁which ▁dra ins ▁a ▁ 1 9   mi ² ▁( 4 9   km ² ) ▁waters hed ▁consisting ▁primarily ▁of ▁for ested ▁( 5 7 %) ▁and ▁agricult ural ▁( 3 9 %) ▁areas . ▁Walker ▁Lake ▁has ▁a ▁maximum ▁depth ▁of ▁ ▁with ▁a ▁mean ▁depth ▁of ▁ 1 3 . 8 ▁feet ▁( 4 . 2 ▁m ) ▁with ▁an ▁overall ▁volume ▁of ▁ ▁of ▁water . ▁ ▁References ▁ ▁Pen na . ▁Fish eries ▁Management ▁Field ▁Report : ▁Walker ▁Lake ▁ ▁P F BC : ▁C . ▁F .