Step #1
First commence the tutorial by making rectangle.
Step #2
Draw outline for triangle.
Step #3
Make zic zac lines on left side of rock.
Step #4
Make zic zac lines on right side of rock.
Step #5
Draw roads on moutain.
Step #6
Make back area and edges of rock.
Step #7
Make lower and top area of rock.
Step #8
Enhance whole Grand Canyon.
Step #9
Finally, make necessary improvements to finish.