hillshade from seamless data

It's ArcGIS time. First, let's reflect on how Arc is the anti-google in terms of user-friendliness. It's a constant source of exasperation and I am here to document my exasperation and hopefully avoid some in the future. Starting from the beginning, here's an example if you want to download high resolution topographic data (1/9 arc second, where 1 arc second at the equator is ~31 m)  from the