Explore the Connecticut River Watershed: An Interactive Mapping Resource
GCS, in collaboration with the U.S. Geological Survey (USGS) and other key partners, has successfully launched the Connecticut River Watershed Atlas. This innovative project utilizes Esri ArcGIS Server and customized tools developed by GCS to deliver a comprehensive analytical and visualization platform for effective watershed management.

What is the Connecticut River Watershed Atlas?
The Connecticut River Watershed Atlas is an online mapping application designed to provide detailed information about the landscape, environmental features, and conditions within the watershed. Users can access a wealth of Geographic Information Systems (GIS) datasets displayed as interactive map layers. The GIS system enables users to:
- Zoom in and out to explore specific areas
- Pan across different regions of the watershed
- View detailed information about map features directly from their web browsers—no specialized software required.

Features of the Atlas
This web portal is tailored for resource managers, planners, and anyone interested in understanding the Connecticut River Watershed’s landscape and environmental attributes. Key features include:
- A collection of land and water data
- Detailed descriptions of available datasets
- Links to additional resources, organizations, and data sources
The USGS initiated this project as an essential first step towards assessing the long-term sustainability of the watershed’s natural resources. The Atlas is a collaborative effort between the USGS and The Nature Conservancy (TNC), with plans to involve more partners in the future.
For more insights on our commitment to sustainable watershed practices, visit our Project Background page.

Available Data
The Atlas provides comprehensive data on:
- Physical characteristics of the watershed
- Cultural features and demographics
- Biological and ecological data
- Water flow and water quality metrics
For a detailed overview of the available data layers and their explanations, see the About the Data section. You can also start exploring the data by clicking on the ATLAS link to access the interactive map viewer.

U.S. Geological Survey (USGS): Leading Science Agency for Earth and Environmental Data
The U.S. Geological Survey (USGS) is a premier science agency dedicated to delivering comprehensive scientific information about the Earth, its natural resources, and the environment. As part of the U.S. Department of the Interior, the USGS plays a crucial role in understanding our planet’s dynamic systems and their impacts on human life.
Key Functions of the USGS:
- Natural Resource Assessment: The USGS evaluates the availability and quality of vital natural resources, including water, minerals, and energy sources.
- Environmental Monitoring: The agency conducts extensive research to monitor environmental changes, assess hazards, and develop strategies for sustainable resource management.
- Scientific Research and Innovation: Through rigorous scientific research, the USGS contributes to our understanding of geological processes, ecosystems, and the effects of climate change.


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