As is well known, LiDAR provides an enormous, almost overwhelming amount of information pertaining to glacial geology. Some of this is obvious, such as LiDAR imagery for hummocky stagnant ice deposits which commonly have a very distinctive signature on LiDAR imagery. However, LiDAR imagery commonly also shows quite subtle features which would not have been identified without careful study or having some sense or hypothesis leading to an expected ice margin occurrence at specific terrain positions or elevations. Study of such imagery, it seems, reveals an unending array of evidence. The more one examines LiDAR, the more one sees. Many of these subtleties relate to the receding ice margin, even if their exact nature and origin is uncertain and requires further study. As my Addendum investigation proceeded, I came to better understand the meaning and significance of features which I refer to as “Streaks,” “Scarps,” “Transverse Morainic Ridges,” and “Mega-Scale Lineations, as discussed below.