N'Quatqua, variously spelled Nequatque, N'quat'qua, is the proper historic name in the St'at'imcets language for the First Nations village of the Stl'atl'imx people of the community of D'Arcy, which is at the upper end of Anderson Lake about 35 miles southeast of Lillooet and about the same distance from Pemberton. The usage is synonymous with Nequatque Indian Reserve No. 1, which is 177 ha. in size and located adjacent to the mouth of the Gates River (see N'Quatqua First Nation for a list of other reserves administered by the band, some of which are also named Nequatque).
The village and its beach were at the end of pavement northeast of Vancouver and Whistler until the opening of the Duffey Lake Road stretch of Hwy 99, which runs on the south side of the Cayoosh Range which rises above N'Quatqua on the south and east. Beyond D'Arcy towards Seton Portage, at the other end of Anderson Lake, there is only a rough powerline road thousands of feet above the lake, known as the High Line Road, that is not recommended for the unwary or unsure, or the feeble of engine or nerve.
First Nations people have resided at N'Quatqua "since time immemorial" and there is little doubt that there has been human habitation at this sheltered, food-rich spot soon after the catastrophic collapse of the Cayoosh Range 8-20,000 BP that created Seton Portage and separated Anderson and Seton Lakes (the catastrophe would have created a huge wave - see megatsunami - wiping out all human populations in the valley). Prior to the diversion of the Bridge River into the Seton watershed, the salmon runs coming up the lake were as typically large as on other tributaries of the Fraser.