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. Please note that today's forest fire danger report remains at an 'extreme' level. More information about the current fire danger, burn ban and recommended safety measures can be found here

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Archives
Rodgers Bedrock Compilation Sheets
Mylar Overlays
John Rodgers compiled the 1:125,000 scale, Bedrock Geological Map of Connecticut, published in 1985 on behalf of the Connecticut Geological and Natural History Survey of the Connecticut Department of Environmental Protection, in Cooperation with the U.S. Geological Survey. Published and unpublished 1:24,000 scale quadrangle bedrock mapping was used as source materials for the statewide compilation.
These source materials have been archived by the Connecticut Geological Survey and are made available here. The collection includes 116 paper quadrangles with mylar overlays constituting the master file set for geologic lines and unit designations compiled to the statewide map. Some quadrangles have multiple sheets depicting iterations of mapping. The authors for quadrangle scale source materials are listed on sheet 2 of the published state map.
This master file set of paper source materials illustrates the geologic lines and units selected for the statewide compilation and includes compiler notes in the margins regarding formation designations and structures. The mylar overlays contain the actual linework and labels that were included on the final version of the published statewide map. Consequently, paper and mylar map sets together chronicle the process of the statewide compilation.
Compilations were drafted by Nancy Davis, Craig Dietsch, and Nat Gibbons under the direction of John Rodgers, Yale University. Sid Quarrier of the Connecticut Geological and Natural History Survey, Department of Environmental Protection coordinated the development of the map, and administered the project for the State of Connecticut.
The geologic unit designation table translates earlier map unit nomenclature to the units ultimately used in the statewide publication.
Original documents are available for inspection by contacting the Connecticut State Geologist.
Paper Bedrock Compilation Sheets are listed here by US Geological Survey Quadrangle Name
These materials have been preserved under a cooperative agreement between the State Geological Survey and the US Geological Survey as part of the National Geological and Geophysical Data Preservation Program.
Content last updated April 7, 2015