Geological Survey

Geological Survey
Skip to Content
Skip to Chat
Settings Menu
Language
High Contrast
High Contrast Mode On or Off switch
On
Off
Font Size
Disclaimer
Top
Connecticut
Department of Energy & Environmental Protection
Geological Survey
Featured Programs, Products, and Services
ABOUT THE SURVEY
GEOGRAPHIC NAMES AUTHORITY
Pyrrhotite and
Crumbling Concrete
Bedrock Mapping Program
Strategic Plan
Geologic Maps
Collections
Publications
Archives
Bedrock Mining Sites Database
Energy Applications
& Research
For Educators
Connecticut's
Geological Story
Geology of
CT State Parks
Get Outside
& Explore!
State Designations
Partners and
Affiliated Organizations
content last updated January 22, 2025