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    Image Title  Abstract Category Last Updated
    2 foot contours (LiDAR-derived) 2' contours derived from 2004, 2005 and 2007 LiDAR data. All contours derived from bare-earth LiDAR point returns. The bare earth returns are a representation of the Earth's surface where all man-made structures and vegetation have been removed. Land 10/07/14 11:42 AM
    DEM_L14_REG_BPS_PDX Land 01/01/00 12:00 AM
    FEATURE_HEIGHT_L14_REG_BPS_PDX Land 01/01/00 12:00 AM
    FIRST_RETURN_L14_REG_BPS_PDX Land 01/01/00 12:00 AM
    FRST_RET_L14_HILLSHD_REG_BPS_PDX Land 01/01/00 12:00 AM
    LiDAR Bare-Earth Hillshade (2010) LiDAR bare-earth hillshade from 2004-2010 LiDAR DEM Land
    LiDAR Bare-Earth Hillshade (2014) 3' resolution bare-earth hillshade derived from the 2014 LiDAR DEM. Land 01/01/00 12:00 AM
    LiDAR Digital Elevation Model A 3-foot resolution digital elevation model (DEM) of all Portland area bare-earth LiDAR point returns collected and processed to date (2004 through 2010). The bare earth digital elevation model (DEM) is a representation of the Earth's surface where all man-made structures and vegetation have been removed. The bare earth DEM was created from a subset of LiDAR returns that were classified as ground returns. Includes 2010 bathymetry for the Willamette and Columbia rivers. Land
    LiDAR First Return Digital Surface Model A 3-foot resolution digital surface model (DSM) of all Portland area first-return (a.k.a. "highest hit") LiDAR point returns collected and processed to date (2004 through 2007). The first-return digital surface model (DSM) is a representation of the earth's surface where all man-made structures and vegetation are included. The first-return DSM was created from a subset of LiDAR returns that are classified as "first-return" (representing the tallest object at any given location). Land
    LiDAR First Return Feature Height 2008 Feature height model based on 2008 LiDAR data Land
       
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