Featured Topics

These topics have received special treatment and are each mini-websites inside CT ECO.

CT Parcels

The CT Parcel Viewer is an aggregation of municipal parcel datasets collected by the Councils of Governments and the Office of Policy and Management.

2016 Imagery and Lidar

Orthoimagery (3 inch pixel resolution) and Lidar elevation data for all of Connecticut collected in the spring of 2016. The flight is Connecticut's first statewide acquisition this high level of detail.

Lidar (Elevation)

Information about Lidar datasets for Connecticut. For those datasets with DEM tiles, explore the elevation, hillshade, shaded relief, slope and aspect in an interactive map viewers and as image services.

2012 Aerial Imagery

Learn about, view or download statewide, 4-band aerial imagery captured in March of 2012.

Sea Level Rise Effects on Roads & Large Marshes

To better understand how Connecticut’s coastal area marshes and roads may respond to sea level rise (SLR), Sea Level Affecting Marshes Model (SLAMM) was applied to Connecticut’s shoreline. This viewer displays the model’s results for Connecticut’s 21 largest marshes and all coastal area roads.

Long Island Sound Blue Plan Viewer

The purpose of the Long Island Sound Blue Plan is to identify and protect places of traditional use and ecological significance, and to minimize conflicts, now and in the future. This includes preserving a collective vision of Long Island Sound, and facilitating a transparent, science-based decision-making process. The Blue Plan Map Viewer contains all data layers for the project in a format for exploration.

Connecticut MS4 Supporting Layers (water quality and impervious surface)

Layers supporting Connecticut's MS4 Stormwater permit including 2012, 1 foot, statewide impervious surface are available for viewing and download.

Fish Community Data

CT DEEP's freshwater fish and macro-invertebrate community data (historic and current). Available to view and download.

Connecticut Bears

Researchers at the University of Connecticut are collaborating with CT DEEP to create the first scientifically-based estimate of the number of black bears in Connecticut. Learn about this research and about CT's bear population in this interactive story map.

Carbon Mapping

A study that applied research-based coefficients to UConn's land cover maps to assess and view the impact of land cover change on Carbon in Connecticut. Read about the research and what is shows along with an interactive map viewer.