Figure 6. (a) LROC NAC mosaic images (M1206659832RC and M1206659832LC) of Site 2 showing boulder sources (areas enclosed by green lines), boulder trails (green and yellow lines), and small craters (D> 15 m; red, yellow, and green circles, as in Figure 2a) in the study area (within the white line). (b) Slope angle distribution (color scale) estimated by using KAGUYA topographic data for Site 2 and the locations of small craters (yellow circles) and the starting points of boulder falls (cyan circles). The area within the red rectangle in (a) is discussed in Figure 7.