topography

Elevation Map

Category Geography
Agency City of Portland
Sub-Agency Technology
Date Released January 1, 2002
Date Updated February 21, 2010
Frequency As needed
Description

Elevation map was created as a by-product of the 2001 digital ortho-rectified imagery, using 5 ft contours. Covers the Portland metropolitan area (511 square miles).
Agency Program City of Portland / Technology
Technical Documentation Elevation Map (metadata)
Keywords

Ground Slope

Category Geography
Agency City of Portland
Sub-Agency Technology
Date Released February 6, 2010
Date Updated January 31, 2010
Frequency As needed
Description

Ground slope in 5% intervals for Portland, Multnomah County, Washington County, Clackamas County, Oregon.
Agency Program City of Portland / Technology
Technical Documentation Ground Slope (metadata)
Keywords
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