About the Finger Lakes Region

The Finger Lakes region of New York is a breathtaking part of the northeastern United States, known for its glacially carved lakes, rolling hills, and vibrant communities. Named for the eleven long, narrow lakes that resemble fingers stretching across the map, the region is rich in natural beauty, ecological significance, and cultural history.

These lakes were formed over two million years ago during the Ice Age, as massive glaciers advanced and retreated across the landscape, carving deep troughs into the bedrock. Today, they support thriving ecosystems, robust tourism and agriculture industries, and serve as critical sources of drinking water and recreation for local communities.

For a deeper look at how the lakes were formed, check out this short video by GeologyHub or explore the geologic history of the Finger Lakes from PBS.

Spotlight on Seneca Lake

At 38 miles long and over 600 feet deep, Seneca Lake is the largest and deepest of the Finger Lakes. It contains more water than all the other Finger Lakes combined. The lake provides drinking water for over 70,000 people and is an essential part of the region’s environmental and economic health.

Seneca Lake is also home to a diverse range of wildlife and plant species, as well as one of the state’s most active volunteer monitoring efforts for harmful algal blooms and other water quality threats.

Why This Region Matters

The Finger Lakes are more than just a beautiful destination. They are a vital environmental, economic, and cultural resource — and they need our care.

At Seneca Lake Pure Waters Association, we’re working every day to protect Seneca Lake and the broader watershed through scientific monitoring, education, and community action.


Join us or donate to protect Seneca Lake