1. Environmental protections
By Pamela Durand

2. 1864
• Congress passed legislation giving
Yosemite Valley to the state of California
as a park.

3. 1872
• Yellowstone was the first national park
establish in the United States.

4. 1876
• Appalachian mountain club founded.

5. 1897

6. 1892
• Sierra club incorporated with john Muir as
President .

7. 1920
• Progressives had worked to protect public
land and parks.

8. 1952
• David Brower first executive director of
the Sierra Club . The club had become
America's foremost environmental
protection organization.