A nice read @alexdory, keep up the great work.
You can use their web application Earth Explorer, which is a little Google Maps on steroids, you can select and zoom on the globe to select your desired area of interest.
Agreed, this application is a total beast. Enables the user to do so many different things, USGS ftw.
I didn't know about Microdem though so I will have to do my research. Thanks for the info!
It's an old app that I have used for 10 years :)
Made by a naval military organisation or such, in 1996, updated ever since. Very good app.