A new documentary about Thacher State Park premiered on WMHT last week, highlighting the unique natural and cultural history of the iconic escarpment.
that spurred early pioneers in the study of geology in the 1830s. The Helderberg range have sinc…a key to the geology of North America. https://www.ptny.org/newsandmedia/e-news-1/2015/12/the-great-ledge
