Administrative Report Or Publication
 

The Ore bin ; Vol. 32 No. 8 (August 1970)

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Abstract
  • When you drive through the Madras region on U.S. Highway 97, you see a gently rolling plain dotted with low hills and flat-topped buttes. Since the plain appears to extend westward uninterruptedly to the foothills of the Cascade Range, little would you imagine that between you and the mountains lurk three awesome canyons, totally invisible until you nearly reach the brink. Three rivers -- the Deschutes, the Crooked, and the Metolius - have cut these gashes into the plain and have laid open for observation a sequence of remarkable geologic events. The place where the three rivers join to make one canyon marks the general location of the Cove Palisades State Park. Cove Palisades State Park encompasses Round Butte Dam and its reservoir, Lake Billy Chinook. The 7,000-acre park features picnicking, camping, and boating facilities on the shore of the lake and scenic viewpoints on the canyon rims. The park is an excellent place to see 10 million years of geologic history. The purpose of this report is to present the geologic background of the park area in a nontechnical way (assisted by a short glossary of terms), and then to outline a geologic motor tour of the park by means of descriptive text, photographs, cross sections, and maps. The self-conducted tour starts at Madras, makes 12 designated stops, and ends on the far side of the park in the canyon of the Deschutes River, a total distance of about 25 miles.
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  • Introduction -- Location and access -- History and development of the park -- Geologic history -- Early history -- Pliocene Epoch -- Dalles Formation -- Pleistocene Epoch -- Intracanyon basalt flow -- Landslides -- A geologic tour of the park -- Selected bibliography -- Glossary of geologic terms.
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  • 18675932 bytes
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  • Master files scanned at 600 dpi (256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9080C in TIF format. PDF derivatives scanned at 300 dpi (256 Grayscale) using Capture Perfect 3.0 and OmniPage Professional 15.0 for textual OCR on a Canon DR-9080C.
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