3 0 ▁m . ▁The ▁region ▁is ▁mostly ▁flat land . ▁To ▁the ▁south ▁of ▁the ▁F uch ū ▁cl iff ▁is ▁the ▁T ama ▁River ▁low lands ▁while ▁to ▁the ▁north ▁of ▁the ▁K ok ub un ji ▁cl iff ▁is ▁the ▁Rich a - sp enc u ▁side ▁of ▁Rich a - sp enc u ▁Pl ate au ; ▁the ▁region ▁between ▁is ▁the ▁T ach ik awa ▁side ▁of ▁the ▁Rich a - sp enc u ▁Pl ate au . ▁The ▁cl iffs ▁are ▁called ▁ha ke ▁in ▁the ▁local ▁dialect . ▁ ▁The ▁N og ays a ▁river , ▁a ▁trib ut ary ▁of ▁the ▁T ama ▁River , ▁gra zes ▁the ▁n ortheast ▁end ▁of ▁the ▁city . ▁ ▁S urr ounding ▁municipal ities ▁ ▁Tokyo ▁Metropol is ▁K ok ub un ji ▁K og ane i ▁Ch ō fu ▁In agi ▁T ama ▁H ino ▁K unit achi ▁ ▁Cl imate ▁ ▁History ▁ ▁The ▁government ▁of ▁ancient ▁Mus ashi ▁Province ▁was ▁established ▁in ▁F uch ū ▁by ▁the ▁Ta ika ▁Reform , ▁and ▁the ▁city ▁prosper ed ▁as ▁the ▁local ▁center ▁of ▁politics , ▁economy , ▁and ▁culture . ▁It ▁prosper ed ▁as ▁a ▁post ▁town ▁on ▁the ▁K ō sh ū ▁Ka id ō ▁in ▁the ▁E do ▁period , ▁and ▁the ▁K ita ▁T ama ▁District ▁public ▁office ▁was ▁placed ▁here ▁after ▁the ▁start ▁of ▁the ▁Me iji ▁era . ▁▁▁ 6 4 5 : ▁With ▁the ▁Ta ika ▁Re forms ▁of ▁the ▁government