external In the Media February 22, 2023 Dan May, professor of environmental science, discusses the bluish-gray ledges in the Wepawaug River bottom near Saint Peter's Church in Milford. He says they are metamorphosed volcanic rocks formed about 465 million years ago. https://theorangetimes.com/the-bridges-at-the-end-of-the-line/ daniel-may news-all news-in-the-media year-2023 month-february name-daniel-may