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U.S. Geological Survey Open-File Report 97-487

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HOME

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Data

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These digital GIS layers were compiled with ArcInfo software. The files are volcano hazard map data available as ArcInfo coverages and shapefiles. ArcInfo-compatible GIS software is required to use the files. The files are stored in a single zipped folder (crater_lake_coverages.zip or crater_lake_shapefiles.zip) in this release for ease of transfer. The scale of the source map limits the spatial resolution (scale) of the files to 1:100,000 or smaller. Available ArcInfo coverages and shapefiles are described below:

ArcInfo coverage or shapefile	Description
chazpoly	Proximal and Distal Volcano Hazard Zones (lines, polygons)
chazline	Maximum extent of pumiceous deposits(lines)
chaz	Silicic and mafic vent locations(lines)
c_faults	Faults active in past few million years (lines)
cballs	Location of ball symbol showing downthrown side of fault(points)

Download crater_lake_coverages.zip containing the digital files.

Download crater_lake_shapefiles.zip containing the digital files.

Federal Geographic Data Committee (FGDC) metadata are available for the digital files in text format.

INTRODUCTION

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DATA

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PLOTFILES

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LINKS

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2007

U.S. Department of the Interior
U.S. Geological Survey

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data.html
March, 2007