Te Rau-o-te-Huia / Mount Donald McLean, Summit in Waitakere Ranges, Auckland Region, New Zealand

Te Rau-o-te-Huia / Mount Donald McLean is a 389 m peak in the southern Waitākere Ranges, about 2 km northwest of Little Huia. Its slopes are covered in native bush, including kauri, rimu, nīkau, tōtara, tānekaha, lancewood and rewarewa. The hill is the source of the south-flowing Baker Stream and some tributaries of the east-flowing Marama Stream.

Te Rau-o-te-Huia / Mount Donald McLean is part of the Waitākere volcano, which began erupting 23 million years ago in the Miocene. Most of the volcano had eroded by five million years ago; only its eastern slopes were uplifted from the sea floor to form today's ranges. In the 1850s the Gibbons family milled kauri on the hill's north side, and early 20th-century fires left mānuka scrub.

The name Te Rau-o-te-Huia, 'The Plumes of the Huia', referred to both the hill and Huia Bay; the plumes were a metaphor for the pride the name's giver felt in the area. The hill lies within the rohe of Te Kawerau ā Maki and overlooked kāinga around Huia Bay.

Access is by Mt Donald McLean Road off Whatipu Road, or on foot via the Puriri Ridge Track and the Donald McLean Track. The summit track was upgraded in the late 1980s. A viewing platform stands at the top, and Mount Taranaki is visible from it on a clear day.

The summit viewing platform was added when the track was upgraded in the late 1980s. From it, Mount Taranaki is visible on clear days, roughly 200 km to the southwest, a sight that drew trampers here from the 1930s onward.