Rottum (or Röppen) is a small village on an artificial dwelling hill between Kantens and Usquert in the municipality of Het Hogeland, falling under the province Groningen in the Netherlands.

[3] The village was founded on a clay bank of the Fivel estuary and the Wadden Sea.

Since high tides were threatening the early inhabitants they raised its height with manure and waste: this way an artificial dwelling hill was created.

On top of the artificial dwelling hill eventually a heathen chapel was located, according to the biography of the missionary Ludger.

In 1999 the sculptor Greet Grottendieck was asked to make a bust of Jan Boer to celebrate the 100th anniversary of his day of birth.