Data Guides

Data Guides provide basic information about the data on CT ECO including description, purpose, use limitations, date and links to related information.

Resource Guides

Resource Guides thoroughly describe the resources being mapped and include more information than the related Data Guides.


Metadata can be accessed throughout CT ECO and a list can be found on the CT DEEP GIS data download page.

Help and How To

Help pages for most to the CT ECO Viewers.
How To instructional pages.

General Information and Data Layer Specific Information

General informational pages include CT's Digital Orthophotography, Coordinate System info and a Glossary of Acronyms.
Data Layer Specific pages explain Lidar, National Wetlands Inventory, Watershed Layers and more.

Frequently Asked Questions

FAQ pages about different topics on CT ECO.