Scenery Disk 9 is a scenery add-on for subLOGIC Flight Simulator II. It covers Chicago, St. Louis and Cincinnati.
Scenery Disks such as this one allow the pilot to experience an enhancement of the flying environment through added airports, landmarks, visual details and navaids. They are derived using National Oceanic and Atmospheric Administration Sectional Aeronautical Charts and Airport/Facility Directories. Scenery Disks can also be used with subLOGIC UFO, Jet simulator and Stealth Mission.
There are 11 other Scenery Disks that cover the continental US, and two additional Scenery Disks cover Western Europe and Japan, and one special Scenery Disk: Hawaiian Odyssey Scenery Adventure (not released for Atari 8-bit/C-64). Also there are Star Scenery Disks that cover a specific area in great detail such as San Francisco.