Introduction
Wilderness and the origins of National Parks
Wilderness and the new agency
Wilderness becomes an Issue for the Park Service
Preservation of the primeval in the Post-Mather Era
More ferment and expansion
From the war to Director Wirth
The drive for a wilderness act
A hesitant start at implementation
Wilderness reviews reluctantly completed
Wilderness in Alaska
A new sort of National Park wilderness
Park wilderness after the reviews
The work continues
Epilogue.