The Den is one of Pacific City's three districts. It is mostly made up of industrial buildings such as the Mason Quarry and the Docks. In Crackdown, the Den is controlled by the Volk gang. The Den is later renamed "Hope Springs".
Athletic agents would find that there is a lot of rooftops in the Den. It would be wise to use this to your advantage but be warned, the Volk know this and have guards on the rooftops. However they are very densely packed meaning you can blow them up and get a nice boost to your Explosives skill.
Gang Hideouts
Puregy Refinery
This is where Sergei "Sovetnik" Yuriev can be found.
City Coaches
This is where Igor "Rafik" Biragov can be found.
Observatory
This is where Natalya "White Fox" Gryzunova can be found.
Black Market
When Natalya "White Fox" Gryzunova is not at the observatory, she can be found here.
Docks
This is where Boris "Baron" Mikhailov can be found.
Camp Johnson
This is where Viktor "Curse" Rabotnikov can be found.
Mason's Quarry
This is where Olga "Meat" Romanova can be found.
Exetron Oil Rig
This is where Vladimir "The Wolf" Golyak can be found.