The fortress is sprawling, with well-articulated walls. The inner space is less defined but contains unmarked buildings as well as gunpowder storage (D), a military prison (E), provisions storehouses (M), and barracks (N).
“Annotation (Vyborg): "III. Koronsontanskaia Fortress",” Town Planning on an Imperial Scale, accessed May 3, 2024, https://imperiia.omeka.fas.harvard.edu/document/4139.