FOSSIL FORESTS OF YELLOWSTONE PARK. 5 



The fossil forests of the YelloAvstone National Park cover an ex- 

 tensive area in the northern portion of the park, being especially 

 abundant along the west side of Lamar Kiver for about 20 miles 

 above its junction with the Yellowstone. Here the land rises rather 



Fig. 2. — Upright fossil trunk in Gallatin Mountains, Montana. 

 Courtesy of E. C. Alderson. 



abruptly to a height of approximately 2,000 feet above the valley 

 floor. It is known locally as Specimen Ridge, and forms an ap- 

 proach to Amethyst Mountain. There is also a small fossil forest 

 containing a number of standing trunks near Tower Falls, and 

 near the eastern border of the park along Lamar River in the vi- 

 cinity of Cache, Calfee, and Miller Creeks, there are many more or 



