156 PRACTICAL ARBORICULTURE 
grow. Young trees showed a more rapid increase. Twenty miles southeast 
of Denver is another cedar stump the same size as this, while twenty-two 
miles south of Denver on the Colorado and Southern Railway is a log of 
mammoth size. This is on Cherry Creek near the old Santa Fe trail. Rev. 
M. Hamilton, a collector of fossils, first discovered its character in 1866. It 
was in three sections, broken in falling. It has been mostly removed, blasted 
with dynamite and carried away. My informant, Mr. W. N. Byers, of Den- 
ver, described it as being when he first saw it in 1868, 90 to 93 feet long and 
from 20 to 22 feet in diameter, partly imbedded in the earth. 
There are many other wood petrifactions in Colorado, at Boulder, about 
Golden, and some at Middle Park, which are from three to five feet in 
diameter. 
ARIZONA FOREST 
Near Sims, Morton County, North Dakota, on the Northern Pacific 
Railway, are quite extensive petrifactions. 
At Fossil Station, Uinta County, Wyoming, on Ham’s Fork of Green 
River, are others. On Yakima River in eastern (arid) Washington and in 
eastern (arid) Oregon are large numbers. 
A party of California prospectors, while searching for minerals, reported 
in 1860 an immense petrified tree in a defile in Northwestern Nevada, not far 
from the Oregon line. This, according to their report, was larger than the 
largest sequoia now living. Numerous other stumps and trees were seen 
in the same vicinity. This is an extremely arid locality and but seldom 
visited. 
