989-20 - White willow (Salix alba) tree with base of trunk almost chewed through by Eurasian beaver (Castor fiber), Narew marshes, Podlaskie, Poland. MORE INFO: Beaver activity is crucial in keeping Poland's ancient marshes open and free of encroaching bushes and trees and their dams also help to maintain high water levels.
817-106987 - Parker Lake bordered by Willows & Aspens in autumn color w/ Mt, Lewis bkgnd [Populus tremuloides, Salix sp.], Ansel Adams Wilderness, Parker Lake, CA.