Fallen Tree Lingers

I'd just like to show you a couple of photos I took of an alder tree that fell across a river near here. The first pic was taken just after it fell - May 2003:

The second was taken in February 2014:

 I am amazed that a tree could hold on in a fast flowing burn like this for such a long time. Some of the beggest differences in the images are due more to the time of year, rather than the decade that separates the them. Hopefully I'll remember to revisit in May and get a clearer comparison...