The statewide 2016 lidar-based elevation has replaced the 2006-2014 virtual mosaic for statewide services including hillshade, shaded relief, slope and aspect for Connecticut. Other lidar datasets are available in the Elevation Interact map and as image services.
The 2016 bare earth raster tiles are part of the online, interactive elevation viewer that contains elevation, hillshade, shaded relief, slope and aspect along with index layers like footprints.
for intermediate users
Seven elevation datasets in one map with image display options.
The linked page lists all available documentation for each dataset.
for advanced users
Go to the Map and Image Services page and click on Elevation.
for GIS users
Download 2016 contour files.