The split between the local government areas approximates the
drainage divide with the northern part of the locality in the Cairns Region draining into the
Russell River (Suez Creek being the principal watercourse within the northern part of the locality) and with the southern part of the locality in the Cassowary Coast Region draining into the
North Johnstone River (Waraker Creek being the principal watercourse within the southern part of the locality). The locality is mountainous terrain ranging from 20 metres above sea level (in the Suez Creek valley) through to peaks such as Mount Mirinjo (390 metres), Cooroo Peak (430 metres) and Chalmynia Mountain (400 metres). The only road through Ngatjan is the Cooroo Lands Road which traverses the southern part of the locality connecting the locality of
Cooroo Lands (which is cut off to the south by the
Johnstone River) to
Upper Daradgee from where there are connections through to the
Bruce Highway at
Fitzgerald Creek. The land in the centre and north of locality is within the
Wooroonooran National Park (part of the
Wet Tropics World Heritage Area). Outside of the national park in the south of the locality, the land use is residential with other minimal use. == History ==