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snippet: This is a digital terrain model image based upon the Lidar collected in April 2021. Terrain model developed by the Illinois State Geologic Survey.
summary: This is a digital terrain model image based upon the Lidar collected in April 2021. Terrain model developed by the Illinois State Geologic Survey.
accessInformation: Illinois State Geologic Survey
thumbnail:
maxScale: 18025.282035439803
typeKeywords: ["ArcGIS Server","Data","Image Service","Service"]
description: <span style='color:rgb(0, 0, 0); font-family:&quot;Trebuchet MS&quot;, Arial, Helvetica, sans-serif; font-size:medium;'>When only the ground returns in a classified point cloud are used, the resulting hydro-flattened grid of bare-earth elevations is a DTM. Also, lake surfaces are smoothed and stream courses are conditioned for downhill flow using breakline data. This subset of the processed returns from the airborne laser sensor represent the ground surface and is commonly referred to as the ‘Bare Earth’ point cloud.</span>
licenseInfo: <span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>Please review the Terms of Open Geo-Spatial Data License posted on this website: </span><a href='https://www.willcountyillinois.com/County-Offices/Administration/GIS-Division/Data' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>https://www.willcountyillinois.com/County-Offices/Administration/GIS-Division/Data</a><span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>.</span>
catalogPath:
title: Lidar2021_DTM
type: Image Service
url: https://gis.willcountyillinois.com/image
tags: ["Lidar","Will County","DTM"]
culture: en-US
portalUrl:
name: Lidar2021_DTM
guid:
minScale: 576809.0251340737
spatialReference: NAD_1983_2011_StatePlane_Illinois_East_FIPS_1201_Ft_US