Using Lightroom CC, I want to isolate small sections of landscape photos and make separate images from them. So I might make several images from different parts of a large photo, but I would like to save the original image.
You need something like Photoshop or Photoshop Elements or some other pixel editing software to do work like that. Since Lightroom is a nondestructive editor, there are limitations to what it can do. Pixel-based editors, on the other hand, give you complete flexibility to cut and paste and combine in any way that you want to.