published on February 17, 2016
Emacs has a bookmarking feature which allows to record positions in files and easily jump back to them afterwards. This can be extremely handy when navigating a large codebase.
C-x r m bookmarkname RET
record a bookmark (mnemonic: record-mark)
C-x r b bookmarkname RET
jump to a bookmark
C-x r l
List all bookmarks (names and file locations), jump to them on enter.
More details at the Emacs manual.