The Ice Age National Scientific Reserve is an affiliated area of the National Park System of the United States comprising nine sites in Wisconsin that preserve geological evidence of glaciation.
To protect the scientific and scenic value of the landforms, the U.S. Congress authorized the creation of a cooperative reserve in 1964.
Planning was underway as of 2012[update] for the future development and management of the Cross Plains unit.
[3] Several of the sites are joined by the Ice Age National Scenic Trail, but the reserve is a separate entity.
[1] Units of the reserve that charge state park access fees also accept federal passes.