20250210 19072300 1.0 TRUE MosaicToNewRaster dtm2020;dem20201ft D:\Temp\scratch.gdb dtm2020a PROJCS["NAD83(HARN) / Maryland (ftUS)",GEOGCS["NAD83(HARN)",DATUM["NAD83_High_Accuracy_Reference_Network",SPHEROID["GRS 1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["False_Easting",1312333.333],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-77.0],PARAMETER["Standard_Parallel_1",38.3],PARAMETER["Standard_Parallel_2",39.45],PARAMETER["Latitude_Of_Origin",37.66666666666666],UNIT["US survey foot",0.3048006096012192]],VERTCS["NAVD88 height - Geoid12B (ftUS)",VDATUM["North American Vertical Datum 1988"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["US survey foot",0.3048006096012192]] "32 bit float" 1 1 Last Reject Rename D:\Temp\scratch.gdb\dtm2020a D:\Temp\scratch.gdb\dtm2020 RasterDataset BuildPyramids "Q:\LIDAR2023\Elevation_Rasters\New File Geodatabase.gdb\countywide_dtm" -1 NONE NEAREST DEFAULT 75 OVERWRITE CopyMultiple "'Q:\LIDAR2023\Elevation_Rasters\New File Geodatabase.gdb\countywide_dtm' RasterDataset" Q:\LIDAR2023\Elevation_Rasters\DTM2023.gdb countywide_dtm "countywide_dtm RasterDataset countywide_dtm #" CopyMultiple "Q:\LIDAR2023\Elevation_Rasters\DTM2023.gdb\countywide_dtm RasterDataset" \\mc-webap9\c$\SVC_PUB\Data\Terrain.gdb countywide_dtm "countywide_dtm RasterDataset countywide_dtm #" 150000000 5000 ItemDescription Digital Terrain Model (DTM, 20223) for Montgomery County, MD <div style='text-align:Left;'><p style='font-size:12ptmargin:0 0 0 0;'><span><span>A Digital Terrain Model (DTM) is a 'bare earth' elevation model, unmodified from its original data source (such as lidar, ifsar, or an autocorrelated photogrammetric surface) which is free of vegetation, buildings, and other 'non ground' objects. The DTM is derived from LiDAR point clouds (QL1) and has a 1 ft resolution.</span></span><span /><span><span>For more information, contact: GIS Manager Information Technology &amp; Innovation (ITI) Montgomery County Planning Department, MNCPPC T: 301-650-5620</span></span><span /></p><div><p><span /></p></div></div> Information Technology & Innovation (ITI), Montgomery County Planning Department, MNCPPC countywide_dtm Environment Digital Terrain Model DTM Raster LiDAR Montgomery County Planning Department Montgomery County MNCPPC Maryland <div style='text-align:Left;'><div><p><span><span>You can copy, modify, distribute, and perform analysis on the data, even for commercial purposes, all without asking permission, but please provide attribution to the Montgomery County Planning Department. The Planning Department makes no warranties about the data, and disclaims liability for all uses of the data, to the fullest extent permitted by applicable law.</span></span></p></div></div> 20250314