The Taconic Range ridgeline continues to the north from Equinox Mountain as Mother Myrick Mountain and south as Red Mountain; it is flanked to the west by Bennetts Ridge and Bear Mountain, also of the Taconic Range, and to the east by the western escarpment and plateau of the Green Mountains, across the Batten Kill valley. The southeast side of Equinox Mountain drains into the Batten Kill, thence into the Hudson River, and into New York Harbor. The northwest side of Equinox drains into the Green River, a tributary of the Batten Kill.