Mount Norris, which is hardly to be separated from the Thunderer, also
bears a small fossil forest. The trees are of about the same size and
character as those in the larger mountain. Fossil forests of greater or
less extent, composed mainly of upright trunks, are exposed also on
Baronett Peak, Bison Peak, Abiathar Peak, Crescent Hill, and Miller
Creek. In fact, there is hardly a square mile of the area of the
northeastern portion of the park that is without its fossil forest,
scattered trunks, or erratic fragments.
The vast area east of the Yellowstone Lake and the region still farther
east, beyond the limits of the park, have not been thoroughly explored,
but enough is known to make it certain that these areas contain more or
less fossil wood. The stream beds in these areas in many places contain
fragments of fossil wood, which indicates that trunks of trees must be
near at hand.