Its core towns - Lillooet, Lytton, Yale, Boston Bar, Hope, Princeton, Merritt and Spences Bridge remained permanently in the riding until its demise.
Many of the electorate are scattered through smaller communities throughout the region, particularly on Indian reserves and in recreational property areas of the Bridge River Country, the Nicola-Similkameen and the Fraser Canyon.
All reserves and local bands of the Nlaka'pamux and Nicola peoples were included within the riding, as well as those of the Upper St'at'imc and the upriver Sto:lo around Hope and Yale.
Hope, Yale, Boston Bar, Lillooet, Lytton and Princeton are some of the oldest towns in the province, dating to the founding of the Crown Colony during the Fraser Canyon Gold Rush.
Merritt is of slightly later date and was an isolated ranching town until the opening of the Coquihalla Highway in the mid-1980s, which caused its population to boom.