Starting descent of Aster Lk Trail Andrew starts the descent of the Aster Lake Trail. Aster Creek is visible in the background. The steeply tilted beds of rock underfoot here are filled with marine invertebrate fossils from the Carboniferous period.
This image is from the presentation "Astride the Divide - Rocky Mountains - Aster Lake Backpack and Warrior Mountain - Peter Lougheed Provincial Park".