{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Jayme M Strange", "hasEmail": "mailto:jstrange@usgs.gov"}, "description": "In 2007, the U.S Army Corps of Engineers\u2019 Upper Mississippi River Restoration (UMRR) program partnered with the Iowa Department of Natural Resources (IDNR) to collect FEMA-grade, bluff-to-bluff lidar for Navigation Pools 8-24 of the UMRS. In 2009, with American Recovery and Reinvestment (ARRA) funds awarded to UMRR, the remaining lidar for the Upper Mississippi River, to the confluence with the Ohio River, and the Illinois River was contracted. Data acquisition was completed in 2011. Lidar data are remotely sensed, high-resolution elevation data collected by airplane. The Upper Midwest Environmental Sciences Center is processing these data to create Digital Elevation Models (DEMs), 0.5 meter contour lines, and pool-wide hillshade images.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9BLTSTZ", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5f35442082cee144fb3529f7.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5f35442082cee144fb3529f7", "keyword": ["DEM", "Illinois", "Mississippi River", "Missouri", "US", "USGS:5f35442082cee144fb3529f7", "Upper Mississippi River", "digital elevation model", "digital elevation models", "elevation", "laser", "lidar", "surface model", "topography"], "modified": "2026-01-28T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-90.645372228996, 38.896390097, -90.471049553997, 39.301312967", "theme": ["geospatial"], "title": "Illinois River, Alton the Reach from the Confluence of the Mississippi River to Kampsville, IL, Digital Elevation Model, First Return"}