Where is Upper Salzburg? Is it where Hitler built his villa, in Germany or Austria?

Note: Here ian Kershaw said that Hitler went to Upper Salzburg, and from beggar to Fuehrer said that Hitler had returned to Berchtesgaden.

From beggars to Fuehrer, Moritz's apartment in the mountainous area of Obei salter Berg was mentioned. After comprehensive analysis, the author thinks that ian Kershaw's version of Hitler belongs to Berchtesgaden's obedience to salter Berg Mountain.

Baidu Encyclopedia's "Berchtesgaden" entry says:

"Professor Ernst Hanisch of the University of Salzburg once said:" Hitler controlled Upper Salzburg with one hand and Auschwitz with the other. The former is a beautiful and quiet resort, and the latter is like a death factory, which breeds endless terror. "

Obersalzberg, under the jurisdiction of Berchtesgaden, was transformed into Berghoff for Hitler and Nazi officials from 1923, and was again in Obersalzberg from 1933.

1923 (note: Baidu is wrong here, it should be 1926). Hitler finished the second volume of his anti-semitic book Mein Kampf on the Upper Salzburg Mountain near Berchtesgaden, and he was deeply attracted by the mountains and lakes of Berchtesgaden. "

From this point of view, ian Kershaw's version of "Upper Salzburg" is indeed the translation of "Oberlitzberg" in From Beggar to Fuehrer, and it is a mountain in Berchtesgaden, and "Oberlitzberg" is a transliteration.