where it turns south-west and follows the flanks of the Mount Arthur Range, contorting the strata in the Graham, Baton, and Wangapeka Rivers. One branch runs south-east along the Sherry River,^* and probably reaches the alpine overthrust near Lake Rotoiti. The main fault is continued into the basin of the Owen,^† which river it follows to the junction of the Mangles, thence crossing to the Matakitaki. The Tutaki† fault leaves the Motueka fault at the Owen, flanks the Murchison peneplain on the west, into the head of the Tutaki, thence by the Glenroy junction along the Warbeck and Warwick Rivers to the Maruia. The Matiri^‡ fault, parallel to the Motueka fault, shows itself in the Upper Wangapeka and probably the Upper Crow, follows the Upper Matiri to the Maruia junction, thence by Deepdale into Larry's Creek, and flanks the Victoria peneplain on the west, reaching the alpine overthrust near Lake Haupiri.

The Takaka fault^§ follows the Takaka River for twenty miles, thence crosses the range joining the Motueka fault near the Baton. The Karamea fault^‖ crosses the Mount Arthur tableland from the Takaka to the Leslie, thence into the Upper Karamea; it determines the course of the north and south branches of the Mokihinui, thence to the Buller by way of New Creek. The Mawhera fault,^¶ a direct continuation, flanks the eastern base of the Paparoas, running to sea south of the Taramakau. A subsidiary parallel fault to the west determines the course of the Orikak and Blackwater Rivers. The Inangahua fault ^** leaves the Karamea fault at New Creek, flanks the western base of the Brunner Range and the foothills of Victoria Range, reaching as far south as the Big Grey, where its southern continuation is overlain by Old Man gravels. The Ross fault^† is a south-west fault, flanking the western of the granite foothills from the Grey River to Ross; it manifests itself at Koiterangi and Mount Greenland.

The Aorere fault ^‡ runs along the western shores of Golden Bay and follows the Aorere, and thence by way of Brown's Creek across the Gouland Downs. The Wanganui fault runs south-west through West Wanganui Inlet, and a probable parallel fault determines the trend of the coast from Cape Farewell to Rocks Point. The Lower Buller fault ^§ follows the coast-line south-west from north of the Mokihmui, and skirts the higher land from the Ngakawhau to the entrance of the Buller Gorge, thence to the coast at the mouth of Fox's River. The Mount William fault ^‖ flanks