Hemishofen, Büttenhardt, Opfertshofen, and Merishausen). Verenahof now forms part of the Swiss municipality of Büttenhardt. Meanwhile, the exclave of Büsingen am Hochrhein continued to administratively remain part of Germany. Subsequent to the land swap treaty involving Verenahof coming into force on 4 October 1967, Büsingen am Hochrhein was made part of the Switzerland-Liechtenstein customs area; no border checks have been carried out between Büsingen and Switzerland since. At the Wiechs am Randen town hall there are some remaining border markers that became obsolete with the land swap in 1967; in Büttenhardt, at the old school house, some old border markers from the 1930s have been used to frame bushes planted around the enclave. See also Büsingen am Hochrhein References Former exclaves Canton of Schaffhausen Hegau