During the progressive era, economic development and special interest groups would deplete the resources of the environmentand cause irreversible damages to the landscape. In reponse to this, Roosevelt began to turn federal lands into national parks in order to conserve national resoures and to protect the environment. Although land was set aside to preserve nature, activities suchs as logging, mining, and construction were not come to a complete halt but was limited.
John Muir was a naturalist whose love of nature, led to the conservation of national resources. His organization of the Sierra Club, was formed to help preseve forest. His camping trip with Theodore Roosevelt was an important for the Progressive Era. He convinced the president to preserve Yosemite, Grand Canyon, Sequoia, and Mt. Rainier as National Parks.