Knight Inlet is one of the longest on the BC Coast at about 125 km (78 mi) in length; it is about 2.5 km (1.6 mi) in average width. Its great volume of water causes a major current and severe turbulence at its mouth during tidal changes, and outflow winds from it, which pour out of the BC Interior, are a hazard to small vessels in the Queen Charlotte Strait. It is fed by the Klinaklini River, which begins on the western edge of the Chilcotin Plateau and is fed by the massive Klinaklini Glacier, one of the two main eastern "tongues" of the Ha-Iltzuk Icefield, one of the largest of the ice caps of the southern Coast Mountains and also home to the Silverthrone Caldera volcanic bowl.
History
The inlet was first charted by William Broughton, George Vancouver's second-in-command during the first part of his 1791-95 expedition, in 1792.[3] Broughton gave the inlet the name Knights Channel after John Knight (Royal Navy officer). Broughton and Knight were captured by American forces during the American Revolution and were held prisoner together until released in a prisoner exchange.[4]: 142
The inlet was mapped by early Spanish explorers as Braza de Vernaci.[5]