Dolmen D31 is located between the villages of Exloo and Valthe in the Dutch province of Drenthe. The dolmen is attributed to the Funnel Beaker Culture.
Only one of the five capstones has survived and it no longer rests on the bearing stones, of which six are still left. Both keystones are still there. The onset of the covering hill can also be recognized. The dolmen is oriented east-west. The dolmen is 7.0 meters long and 3.3 meters wide. In the vicinity is a burial mound from the Winding Wire culture. The oldest trade route in Drenthe runs along D31, D33, D34, D35 and the burial mound Eppiesbargie. The Valtherzandweg is still part of this prehistoric route.
