Anyone familiar with Nazism has heard about the annual Nuremberg Party Rallies. However, the regional units of the Nazi party (Gaue) often held their own annual gatherings. They were not as large or impressive as those in Nuremberg, but were still major events.
I’m adding a 1935 article from Unser Wille und Weg, the monthly for Nazi propagandists, that discusses what such Gau rallies should accomplish. The GPA also has material from a booklet commemorating the 1936 Gautag in Niedersachsen.