the secret world of moss

I took this close-up of the sprouting moss on the Heisson Bridge which you can see in the extra spanning the Eastfork of the Lewis river. Once the snow starts melting on Mt. St. Helens this creek will turn for a while into a raging river and the rocks will be no longer visible - 

The sprouts are barely 1/2 inch tall and might qualify for the TinyTuesday Challenge -