It was a semi-arid area near the Mediterranean coast, with a fertile plateau around ancient Cyrene, but in the interior was the Sahara desert.
It was divided in 3 "circondari" (sections): The province from 1939 was considered officially part of the Kingdom of Italy, with the same laws.
In the coast of the province was built in 1937-1938 the eastern section of the Litoranea Balbia, that went from Tripoli to the border of Egypt.
Some Italian colonists moved to live in a group of new villages after 1938: they increased local agricultural production, but British invasion during World War II destroyed all improvements.
[1] According to the 1936 census, which allowed citizens to declare their ethnicity, Derna's native population was made up of 94.4% Arabs, 1.8% Turks, 0.7% Blacks, 0.2% Berbers, and 2.9% Others.