bullet MAPS


Map Catalog >>

A variety of maps in pdf format including soils, contours and orthophotos.

Town | Quadrangle | Statewide


CT ECO on ArcGIS Online >>

Visit and interact with CTECO maps in the cloud. Save and share them too.

Go to CT ECO on AGOL | Learn More

Thematic Map Viewers >>

Easy-to-use interactive map viewers for single topic maps.

Simple Map Viewer | Aerial Photo Viewer


Advanced Map Viewers >>

Advanced interactive map viewers with more data and tools than the Thematic Map Viewers.

bullet GUIDES


Data Guides >>

Basic description of CT ECO geospatial data and maps.

2010 Color Aerials | Contours | Parcels

Resource Guides >>

Comprehensive explanation of natural resource and environmental information.

bullet GIS DATA


Map Services >>

Connect your GIS software to CT ECO map services. Add our data to your maps.

Download Data >>

Download the 2012 Ortho imagery and links to sources of geospatial data for CT.



Training Videos >>

Access video training for each section of the CTECO website.

Webinars >>

Watch a full-length webinar introducing CT ECO and the many ways to access geospatial information.

News & Updates

Get the latest on the 2016 imagery and Lidar flight

Go to 2016 Flight Information!

March 10 - The Bears are Back

An informational, map-based story map about bears in Connecticut.

Go to Bears!

January 19 - CT ECO Lidar Elevation - STATEWIDE coverage!

The USGS Sandy 2014 Lidar has been added to the CT ECO elevation services and Elevation Viewer so we now have statewide elevation coverage!

Go to Statewide Elevation!

January 19- CT ECO Survey - Questions and Comments Answered

Read the comments and answers here. Still have questions? Contact us.

Stay Connected


Subscribe to the CT GIS email list to receive notifications and updates regarding the site and data.

Comments, Suggestions, Stories

Email us at CLEAR or at DEEP. We like to her from you!

We also post big announcements on the