THE GEOLOGY OF D.A.R. STATE PARK [Illustration: Shoreline at D.A.R. State Park looking south.] MT. PHILO STATE FOREST PARK [Illustration: Panoramic view from west overlook on Mt. Philo. Adirondack Mountains in background. Lake Champlain and Champlain Lowlands in foreground.] SAND BAR STATE PARK [Illustration: Sand Bar State Park on flat surface of Lamoille River delta. A part of extensive picnic area looking northwest.] THE GEOLOGY OF D.A.R. STATE PARK MT. PHILO STATE FOREST PARK SAND BAR STATE PARK _By_ HARRY W. DODGE, JR. VERMONT GEOLOGICAL SURVEY CHARLES G. DOLL, _State Geologist_ DEPARTMENT OF FORESTS AND PARKS ROBERT B. WILLIAMS, _Commissioner_ DEPARTMENT OF WATER RESOURCES Montpelier, Vermont 1969 [Illustration: Fig. 1. Index Map.] SANDBAR STATE PARK MT. PHILO STATE PARK BUTTON BAY STATE PARK D.A.R. STATE PARK LAKE CHAMPLAIN Milton Burlington Shelburne Falls Hinesburg Vergennes Bristol Port Henry Champlain Bridge Middlebury Crown Point Shoreham INDEX MAP [Illustration: Fig. 1a. Surface of marine terrace at D.A.R. State Park. Immediately to the left of shelter the land rises to a second terrace.] [Illustration: Fig. 2. View northwest along park beach. Illustrates dip of rocks toward northwest; strike, northeast.] THE GEOLOGY OF D.A.R. STATE PARK INTRODUCTION D.A.R. State Park is located in western Vermont on State Highway 17, approximately 1 mile north of Lake Champlain (toll) Bridge (see map, Fig. 1). The park, which fronts on Lake Champlain, contains undeveloped acres on the east side of the Highway. Tenting, leanto camping, picnicking and swimming are adequately provided for during the summer months. This park, more than most others, not only awakens the visitor’s curiosity about the past history of the Earth, but satisfies it. The story of an ancient sea and the life which existed in it can be read from the rocks exposed in D.A.R. State Park. You can read this story for yourselves. This Pamphlet is designed as an aid to a more complete understanding of the observations which you make. “Reading the rock record” is not difficult, but the geologist does have the advantage of possessing a certain trained scientific approach to these problems. This method of approach, the “tools of the trade,” will now be passed on to you. THE GEOLOGY OF THE PARK