It was named after Danish freedom fighter Jørgen Haagen Schmith, whos codename was Citronen.

[3] They are considered to be the largest yet unexploited zinc deposits in the world and the exploitation of the Citronen mine is in the preparation phase.

[4] Australian Ironbark Zinc corporation and the People's Republic of China are involved in the mine projects of the Citronen Fjord.

It is located in Hans Egede Land, 45 km (28 mi) from Cape John Flagler, at the fjord entrance.

It is only 4 km (2.5 mi) in length and there is no glacier discharging at the head of the fjord.