Connecticut Department of Energy & Environmental Protection

Emergency Burn Ban In Effect 10/26/24 - An emergency burn ban is now in effect for all Connecticut State Parks, Forests, and Wildlife Management areas, prohibiting the use of all outdoor grills, firepits, and campfires, and the kindling and use of flame outdoors. DEEP and local agencies are working to contain several active fires across the state. Please avoid all affected State Parks and Forests, as well as the blue-blazed Mattabesett Trail. The Enduro Trail in Voluntown and portions of North Stonington within the Pachaug State Forest are closed at this time. Rocky Neck State Park is also closed until further notice due to a brush fire. Please note that today's forest fire danger report remains at a 'very high' or 'extreme' level. More information about the current fire danger, burn ban and recommended safety measures can be found here

CT Geological Survey banner

Geologic Maps

Geologic maps listed here are available in pdf format. GIS data available where indicated, in GeMS [National Geologic Map Schema] geodatabase format. GeMS format zip files include geodatabases, open data format shapefiles, pdf map layouts, and supplemental information. 
Additional maps not listed may be available through the Connecticut Geological Survey.


state map

Statewide Maps:

Bedrock Geologic Map (1985)  [GIS data, 94M]
Generalized Bedrock Map (8.5 x 11" letter size)
Surficial Materials Map (1992)
Quaternary Geologic Map of Connecticut and Long Island Sound Basin (2005)
Bedrock Mines and Quarries Map (1986) superseded by Bedrock Mining Sites Database (CGNHS Bull. 119, 2022)

Published Quadrangle Maps:

State Geological Survey Quadrangle Reports: Comprehensive peer reviewed geologic reports with maps for 7.5 minute quadrangle areas.
USGS Geologic Quadrangles and Other Published Maps

Unpublished Maps:
Open File Bedrock Maps: Preliminary geologic maps, considered provisional pending peer review. Some have GIS data available. 
Other archival maps

Other state and town maps available through a cooperative arrangement between DEEP and UConn:

http://cteco.uconn.edu/map_catalog.asp

 

State Geological & Natural History Survey Surplus Publications are available and free to educators.

Content last updated November 1, 2022