8 , ▁N aga oka ▁Station ▁was ▁built ▁on ▁the ▁eastern ▁half ▁of ▁the ▁Hon mar u ▁central ▁ba iley . ▁ ▁N aga oka ▁City ▁Hall ▁and ▁other ▁public ▁structures ▁occup y ▁much ▁of ▁the ▁remaining ▁site . ▁ ▁Description ▁▁ ▁N aga oka ▁Castle ▁was ▁a ▁flat land - style ▁castle ▁with ▁two ▁central ▁ba ile ys , ▁the ▁Hon mar u ▁( 本 丸 ) ▁and ▁the ▁Ni - no - Mar u ▁( 二 の 丸 ), ▁both ▁surrounded ▁by ▁a ▁mo at . ▁These ▁were ▁in ▁turn ▁surrounded ▁by ▁the ▁San - no - Mar u ▁( 三 の 丸 ) ▁and ▁Ts ume - no - Mar u ▁( <0xE8> <0xA9> <0xB0> の 丸 ▁) ▁Ba ile ys , ▁and ▁the ▁Min ami - K uru wa ▁( 南 曲 <0xE8> <0xBC> <0xAA> ▁) ▁and ▁N ishi - K uru wa ▁( 西 曲 <0xE8> <0xBC> <0xAA> ) ▁forec our ts . ▁This ▁outer ▁ring ▁of ▁def ences ▁was ▁also ▁surrounded ▁by ▁a ▁mo at . ▁The ▁castle ▁had ▁only ▁ear then ▁r amp arts , ▁with ▁y ag ura ▁watch t ow ers ▁at ▁various ▁locations , ▁and ▁there ▁was ▁no ▁don jon ▁in ▁the ▁central ▁ba iley . ▁ ▁Liter ature ▁▁▁ ▁O w ada , ▁Y as uts une : ▁N aga oka - jo ▁in : ▁Mi ura , ▁Mas ay uki ▁( eds ): ▁Sh iro ▁to ▁Jin ya . ▁Tok oku - hen . ▁G ak ken , ▁ 2 0