Drogden is a channel through Øresund. The trench is located on the Danish side of the Øresund, between Saltholm and Amager. The road and railway connection between Denmark and Sweden passes below it in the Drogden Tunnel. Maximum depth for ships to pass is 8 meters. Drogden is heavily trafficked, and passes about 30 000 ships per year in the fairway.
- "Mariners reference card for SOUNDREP". Retrieved 16 September 2018.