Its administrative offices are in the Village of Pemberton, although the district municipalities of Squamish and Whistler are larger population centres.

Population as of 2016 Canadian Census: 186 Electoral Area B comprises the basin of the Bridge River below its confluence with the Yalakom River at Moha, the valley of Seton and Anderson Lakes (excepting D'Arcy), and the rest of the upper portion of the SLRD surrounding Lillooet and adjoining parts of the Fraser Canyon.

Communities include McGillivray Falls, Seton Portage, Shalalth, Texas Creek, Bridge River (meaning Moha and the lower Bridge River communities), West Pavilion, Pavilion and Fountain and Fountain Valley.

Population as of 2016 Canadian Census: 1663 Electoral Area D comprises the valleys of the Cheakamus and Squamish Rivers and the Sea-to-Sky Corridor south to the SLRD boundary on Howe Sound.

Communities include Britannia Beach, Woodfibre, Furry Creek, the Pinecrest and Black Tusk subdivisions nearer Whistler and the uninhabited former recreational settlement of Garibaldi.