Bielefeld does not actually exist. It has been made up by the Bielefeld Conspiracy. The rest of the graticule is fine.
According to Land usage, the chance for your hash to fall into one of the following areas is:
58.32% Fields 27.82% Natural reserves 7.22% Roads 2.55% Forests 2.05% Highways 1.77% Settlements 0.28% Water
 Local Geohashers
Enno, who is living in Oslo but has family in the area and may be in the area occasionally.
Chimera will be visiting family in the Paderborn graticule from 2008-12-23 to 2009-01-02, but may make it to some hashes in the south of the Bielefeld graticule if she happens to be in the area for whatever reason.
Hoirkmann lives near Bielefeld and is going to make it an active graticule.
 Past Geohashes