Witness Trees

Only one tree standing on the park grounds of Ulysses S. Grant National Historic Site today has been confirmed to have stood when Ulysses S. Grant lived on this property. It is a Black Oak tree that was planted around the year 1829.

Interstadial stumps are tree stumps left behind after glacier ice passed over them, killing the trees, but preserving the wood. Some interstadial wood is only hundreds of years old, while stumps in Glacier Bay have been dated to over 10,000 years old.