The contours were created from the 2016 statewide lidar are have 1 foot contour intervals for the first time. Each zipped file for download contains a geodatabase and a metadata xml file.

Contours derived from 2023 statewide lidar are now available! Visit the CT ECO Download Tool to download the 2016 contours in geodatabase format and the 2023 contours in both geodatabase and shapefile format.

Metadata

2016 Flight

2023 Contours

Download Tool

Download

Click on a red block on the map and then download to save the vector contours. Contours are in zipped geodatabases that range from 1GB to 2.8GBs in size.

Map Service

The 2016 Contour map service (in the Elevation category) may be easier to use depending on your application.