What is "sxe'xn'x"

The Sxe'xn'x are a First Nations people of the Lower Nicola Valley in the southern Southern Interior of the Canadian province of British Columbia. They are part of the larger Nlaka'pamux (Thompson) people and closely connected to the Scw'exmx, a major subgroup of the Nlakapamuxtsin-speaking peoples. Their primary community is Shackan or Lower Nicola, just west of Merritt ("Shackan" is an anglicization of Sce'xn'x).