Thanks.
Engineering firm so we use ArcGIS Pro (ESRI). Their instructions are better than what I could write (link below), the only difference being drag a kml polygon into my project and can directly reference that in CLIP or EXTRACT rather than having to draw or convert something into a .shp file. I do the same for the created Point Clouds from PC master…
I know there are free ways to do this (the raster part), but ESRI is where I first learned and have since stayed.
or I hear QGIS is free and can do this…