Seton Lake is located 10 km west of the town of Lillooet, where it drains into the Fraser River. The lake was named by HBC officer J. R. Alexander, who writes that he named it after
his near relative and playmate of my early days, Colonel Alexander Seton of the 74th,
whose heroic fate I also commemorate by naming the connecting link, the Birkenhead
Strait, after the ship in which he so nobly perished.1
1. Seton Lake,BC Geographical Names Information System.