3-inch ortho-rectified vertical aerial photography covering Milwaukee County Wisconsin - captured April 2020.The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International. Automatic aerial triangulation (AAT) was performed. The triangulated frames were rectified to a LiDAR derived DEM. Mosaicking was performed using an automatic seaming algorithm and manually edited to eliminate seams through elevated features where possible.The recommended use for this image service is for high resolution and raster analytics. If your required use is basemap imagery for reference and no raster analytics, consider using the cached map service for improved performance:https://mclio.maps.arcgis.com/home/item.html?id=ab4c3f59ea224e54aa57d71a18abc04d.