In RMNP, the rangers are battling to save the aspens from voracious park residents, such as the elk. So, they have erected fences around groves of aspens. The fences have gates so human visitors can enter and wander amongst the trees but the fences, while necessary, give an air of darkness to the tree groves -- it is not quite nature and natural.
24-70mm lens at 58mm
converted to black and white in Nik Silver Efex Pro with a little "add back in" of selective color at the bottom of the photo.