In geology, a lens or lentil is a body of ore or rock that is thick in the middle and thin at the edges, resembling a convex lens in cross-section.

The most up-to-date map of the bedrock geology of Vermont was released in 2013 and can be viewed at the Vermont Geological Survey website. Equipped with this map, you can go for a walk or drive around ...

The surficial geology of Vermont is largely a legacy of the glaciers that receded from this area about 13,500 years ago. Glacial till, gravel, sand, and clay are the most common surficial deposits ...