==Begg - main points and different map== 
 Just browsing these at present, but on this page of his Statement of Facts a very different British claim-line is shown from the one on the map currently on this article.  Begg's main points of difference are that the original treaty (1825) specified Cape Chacon, not Cape Muzon, as the start of the boundary line, and that the terms Portland Channel and Portland Canal were deliberately confused by the US, with the meaning of Portland Channel in 1825 referring to Clarence Strait, not the Portland Canal which was unknown at the time; Etolin Island he notes as having originally been Duke of York Island, also.  Begg wrote three treatises on this, most with all the same points, though successively in 1896, 1900 and 1902, all official reports with two (1896 and 1902) written to federal and provincial cabeint ministers, respectively.  Another item in Begg that's passed over here and in other histories is the Ukase of 1821 which claimed to 51 degrees N and also involved the Bering Sea Arbitration.  The Ukase looks to need its own article, as it also invovles the rights of the Russian Orthodox Church in the region.  Anyway, the map clearly needs to be changed; the linked map gives a good idea by how much.