This an interesting photo that defines The colored streaks on the mountain side. My guess is that the line patterns are the result of avalanches over the years. Now with the sun low in the evening. The foreground is darker than the mountain top. The warm sun is highlighting the exposed rock created by the avalanche.
I was standing up on a hill looking into this river valley. A railway track to the left. The river flowing past. The foreground lit by the sun. The mountain darkening.
I saw this scene as I was driving along a road following the Rocky Mountains. The fields covered in lush green grass. Mountains in the background. The Fall colors are just starting in early September. I don’t know, but I just fell in love with this whole area.
The fast moving mist or clouds created an ever changing scene. The clearing of the mist exposed this odd shaped rock structure.
Near Whiteswan Provincial Park, BC in the East Kootenays.