Ali Highway was opened, numerous tea plantations and high mountain vegetable farms opened on Danaiku's hilltops, and the mountain residents hereabouts began making the most of their income from seasonal work picking tea.
七○年代，阿里山公路開通後，茶園與高山菜園在達娜伊谷的山巔大肆盤據，山美人紛紛投入收入較高的採茶臨時工工作。