Boston Hollow

Boston Hollow is a deep ravine in the town of Ashford, Connecticut, cut along an ancient geologic fault within the Central Maine Terrane of the eastern Connecticut highlands, in a formation called the Bigelow Brook Formation made of high grade pelitic schists and gneisses. The hollow runs almost perfectly straight toward the northeast for nearly a mile, between 100 and 500 feet wide, with its floor at 600 to 630 feet elevation and the surrounding ridges rising to 850 feet and higher; its west wall includes sheer rock faces more than 20 feet tall with concave overhangs. Rather than being cut by a stream or a glacier, the hollow reflects the structural displacement of rock along the fault itself. It lies within Yale-Myers Forest and is crossed by the Nipmuck Trail. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/