Treaty Creek adopted in the 1930 BC Gazetteer, not Twenty Mile Creek as shown on earlier maps; Treaty Creek confirmed 5 February 1945 on 104SE, and 5 November 1953 on 104A.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

The name refers to a treaty or convention between the Skeena and Stikine Indians - a sort of no man's land, and breeding ground for beaver between the two tribes; neither group are supposed to trap or occupy this area. (Information supplied by P.M. Monckton, BCLS, c1930).

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

A site surrounding a large rock outcrop along the right shoreline is of cultural and historic significance to the Nisga'a Nation; a 1-hectare site will be designated as a Provincial Heritage Site under the terms of the Nisga'a Final Agreement, Appendix F-1, effective 11 May 2000. "The traditional Tahltan-Nisga'a boundary, as determined by our forefathers in 1898 and drawn on a map... This site commemorates a peace treaty that was made between the predecessors of both Nisga'a and Tahltan Nations at Treaty Rock about the mid-1860s to mid-1870s, following three major feuds between the Nisga'a and the Laxwiiyibim Jits'aawit [as they were then called by the Nisga'a]. " (March 1998 advice from Ayuukhl Nisga'a Department, file 10280-20-002)

Source: Nisga'a Tribal Council / Ayuukhl Nisga'a Department, Aiyansh BC