Key combo shortcut to return home after Ctrl+Shift+down arrow

BLUF: Bottom Line Up Front: How do I return home (or back to the top of my selection) after using the keyboard short key combo of Ctrl + Shift + Down Arrow? What is the keyboard shortcut key combo for this?

Once upon a time, I learned of this key combination that I have since forgotten. I use Ctrl+Shift+Down Arrow a lot. The problem with it, is that after using it, your view is still at the bottom of a very large spreadsheet. I know a second keyboard combo exists that takes you back to the top of your selection all the while leaving your column of data still selected. But I cannot remember what the key combo is.

Thanks for the reminder.

Thanks for the reply. Ctrl+Up seems to deselect the previously selected cells. I was looking for the solution that leaves your column of data still selected.

While waiting, I think I found it. The answer I was searching was Ctrl+Backspace