LIDAR
?
The bare earth model has also allowed for distinction of other larger scale features on other parts of the mountain.  While the main focus of studies over the past 100 years has been on the 1903 slide (right) and South Peak, we are now seeing features with the bare earth model that were not obvious with the vegetation obscuring the slope.  The feature on the left appears to be some sort of historical movement that may have been rapid and of similar magnitude to the 1903 slide.