From a distance it could have been a muskrat.
But as I ran up on it as quietly as possible, I could see it was a beaver.
He was leaving colorful patterns in his wake.
As I got closer, the patterns in the water intensified.
Finally caught up to the beaver and he was making waves.
He slowed down and eyed me intensely.
I caught him in mid slap before he dove under a tree hanging over the water.
He waited in the water at the edge of the tree.
He started out from under the tree, saw me and did a slap-n-dive just as I released the shutter. You can see his face and paw under the water.