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Coast Range The heavily vegetated, elongated Coast Range province has a varied geologic history. Its basement was formed by a volcanic island chain that collided with North America about 50 million years ago. The ancient volcanoes form many of the scenic headlands along the coast, and the sediments that have accumulated around them contain marine fossils that help unravel the area’s complicated geologic story. Links: Geologic Hazards on the Oregon coast Oregon Outdoors Central Oregon Coast Information Cape Perpetua Scenic Area Siuslaw National Forest Oregon Coastal Atlas Oregon Dunes National Recreation Area Oregon Coast Aquarium Travel Oregon Online: The Coast Oregon Coast geology Field Trip
Graphic by Elizabeth L. Orr, Geology of Oregon, |
 Cape Perpetua is a 2,700 acre scenic area with an interperative center and hiking trails near Yachats  Yaquina Head Lighthouse is part of a BLM Outstanding Natural Area open to the public near Newport |
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Oregon Department of Geology and Mineral Industries
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