During the falls the larch trees seem to get all the attention when it comes to fall colours in the mountains. There are other trees and shrubs that add to the colours during the fall, one of those are the trembling aspen trees. Normally aspen propagates through root sprouts, which can create a very large clonal colonies with a single root system. By mass a aspen colony is considered to be the largest organism on earth. Each colony is its own clone, all the trees in a clone will have similar characteristics, for example producing a wonderful bright tone of yellow at the same time with the occasional red colour showing up.