168 Nature protected 
the same year. The park occupies 
four square miles. 
The Yosemite National Park, in 
California, was founded in 1890. The 
district occupies 1,512 square miles, 
and contains some of the most beautiful 
parts of the Sierra Nevada. 
The Mount Rainier National Park, 
in the State of Washington, is about 
nine square miles in extent, and was 
instituted in the year 1899. It con- 
tains glaciers and a great many Arctic 
plants and animals. Although of great 
altitude, rare birds and other animals 
were threatened by sport, and it was on 
this account that the reservation was 
made. 
The Arizona National Park, near 
Holbrook, in Apache County, was 
instituted in 1906. It forms a so-called 
petrified forest, consisting of silicified 
stems of trees which appear to re- 
semble those of existing Araucaria. 
