The land district's southern boundary lies along part of the international boundary between BC Canada and the US state of Washington. The western end of the land district's southern boundary meets the centre of the Strait of Georgia where it turns along the midline until it diverges to follow Malaspina Strait, bypasses Texada Island which has its own separate land district, then rejoins the midline of the Strait of Georgia approximately midway between Comox and Powell River to a point south of Hernando Island, then traversing the mouth of Desolation Sound following Calm Channel between Cortes Island to the west and West Redonda and Raza Islands to Pryce Channel, then following that channel and Homfray Channel to 51 degree 14 minutes north, from whence it proceeds eastward, other than two small variances around certain land parcels in the area of Homfray Channel and the Soo River, to the summit of the Garibaldi Ranges just south of Mount Currie to a point southwest of In-SHUCK-ch Mountain (Gunsight Peak), then eastward via roughly 50 degrees 7 minutes north latitude to the divide of the Lillooet Ranges, following that for a short distance, then south via an irregular line to Harrison Lake, meeting that lake's shoreline northwest of the mouth of Big Silver Creek (aka Big Silver River) and following the lake south so as to include Long Island but exclude Echo Island.