The dead tree in the foreground of this thermal pools in Yellowstone National Park testifies of the transient nature of the thermal features. Surprisingly, they grow and move and disappear over time. The surrounding vegetation is always at risk that the pools will expand the be killed. There are whole sections of the area where the thermal activity has increased and killed whole groves of trees. It is always interesting to see the changes on subsequent visits to the Park.
No comments:
Post a Comment