In early 1986, the contract for this segment through the Munjina and Mungina East gorges was awarded. Construction of this segment involved tight control over earthworks and machinery movements, to protect the National Park ecology. The finished road was a scenic route curving down through the Munjina Gorge and out onto the Fortescue River flood plain, with cuttings and embankments blending it in with the natural environment. It was opened on 12 June 1987 by the federal Minister for Transport, Peter Morris, having cost $28.4 million.