Ok ok, you probably already knew this. But if you didn’t it will make your rastery life so much easier. This is how you can create a “mosaic” in ArcGIS Pro from a bunch of separate images so you can work with them like they’re just one thing. Big time-saver and your maps will look better.
0:00: Rudely short introduction. Finding and adding separate DEM images.
0:30: Mosaic to New Raster tool (with little tradecraft tidbit about dragging a bunch of layers into the tool’s input).
1:00: Optionally defining an output spatial reference.
1:22: Pixel type? Bits? Signed vs unsigned? Check it.
1:41: How to check the pixel depth of an input image layer (also, they all have to be the same if you want to mosaic them).
2:01: Inadvertent “new email” chime in the background because I forgot to close Outlook before recording. Sigh.
2:13: A look at the pyramid layers ArcGIS Pro automatically makes when you add images to a project, and the output mosaic’s files.
2:42: More tradecraft. If you hold the “Ctrl” key when clicking checkboxes in the contents list, it applies to ALL the checkboxes!
2:48: Proving to you, my friends, that the resulting mosaic is indeed a single image (by changing the raster symbology and also making a seamless hillshade).
Happy mosaicing! John