The wharf area, which is owned by the corporation Stockholms Hamnar, is about 600 metres long, and is mostly located between Londonviadukten and Fåfängan on one side and Saltsjön on the other, it stretches from Varvsbranten in the west to the mouth of the Danvikskanalen channel in the east.
The naming board of the city of Stockholm states: "A map from 11 January 1774 over the area, established as a permission to use the cliff for businessman Fredrik Lundin [...] shows the situation of the mast harbour previously located by the western end of the cliff face."
Masthamnen's western part and the Londonviadukten area now (2011) serve Viking Line cruiseferries.
Yttre Masthamnen is the only central location in Stockholm where large cruise ships can anchor.
[4] The Danvikslösen project contains a plan to rebuild the Saltsjöbanan to match the double track standard of the Tvärbanan.