The land on the east side of the fjord is called Hurumhalvøya or the Hurum peninsula and this is located in Asker Municipality.

[8] Dead coral reefs are also found at depths of about 10–20 metres (33–66 ft) below sea level in the fjord.

In historic times the Drammensfjord was known by the Old Norse name Dramn or Drofn, meaning hazy waters.

Snorre Sturlason tells that Saint Olav hid himself from Canute the Great at a fjord which was called Dramn.

This is a slow process, thus the sea covered substantial areas of what is today dry land for thousands of years following the end of the last ice age.