▁the ▁intersection ▁of ▁Central ▁Cross - Is land ▁Highway ▁and ▁Provin cial ▁Highway ▁ 1 4 A . ▁As ▁the ▁highest ▁point ▁of ▁the ▁Central ▁Cross - Is land ▁Highway , ▁Day uling ▁is ▁typically ▁considered ▁as ▁the ▁div iding ▁point ▁of ▁the ▁highway ▁into ▁its ▁west ▁and ▁east ▁sections . ▁To ▁the ▁west , ▁the ▁highway ▁passes ▁through ▁a ▁short ▁one - way ▁tunnel ▁known ▁as ▁the ▁He hu ans han ▁T unnel ▁( 合 <0xE6> <0xAD> <0xA1> 山 <0xE9> <0x9A> <0xA7> 道 ) ▁before ▁desc ending ▁to ▁L ish an . ▁To ▁the ▁east , ▁the ▁highway ▁passes ▁through ▁T ian xi ang ▁before ▁dro pping ▁into ▁Tar oko ▁G orge . ▁Meanwhile , ▁Highway ▁ 1 4 A ▁branches ▁away ▁to ▁the ▁south , ▁clim bing ▁to ▁its ▁peak ▁at ▁W uling . ▁ ▁Day uling ' s ▁surrounding ▁area ▁is ▁known ▁for ▁its ▁high - alt itude ▁agricult ure , ▁producing ▁high - mount ain ▁tea , ▁app les , ▁and ▁pe aches . ▁ ▁History ▁ ▁Origin ally , ▁a ▁trail ▁was ▁built ▁by ▁the ▁At ay al ▁people ▁passed ▁near ▁Day uling . ▁During ▁the ▁Japanese ▁occupation ▁of ▁Taiwan , ▁the ▁Governor - General ▁of ▁Taiwan , ▁Sak uma ▁Sam ata , ▁ordered ▁the ▁construction ▁of ▁a ▁road ▁through ▁the ▁same ▁trail ▁as ▁part ▁of ▁the ▁five ▁years ▁plan ▁to ▁gover ning ▁ab orig ines ▁to ▁better ▁transport ▁supplies ▁in ▁the ▁Tru ku ▁War . ▁ ▁After ▁the ▁change ▁of ▁power ▁to ▁the ▁Ku om ingt ang