The Catalog is an index of the maps and geographic data available throughout the Oakland County Web site. Much of the information is cataloged under the Maps & Data section, including:

• free maps that can be downloaded and printed
• maps that can be ordered online
• interactive, Web-based maps
• publications that can be ordered or downloaded

All maps and geographic data use Geographic Information Systems (GIS). Technical information about GIS is available under geodatabase models and metadata.