The latest round of public comment represents the fourth time in two years that the public has delivered this message about future winter use in Yellowstone.
Isla Calafia lies under 300 feet of water on the highest part of a huge underwater ridge.
Federal dam managers failed to meet federal standards for water quantity and water temperature in the Snake and Columbia rivers, violating the Endangered Species Act and the Clean Water Act.
According to PEER, Norton substantially altered biological findings from the U.S. Fish & Wildlife Service about effects of oil development in ANWR before she relayed them to Congress.
The purchase preserves permanent public access via County Road 42 to Petroglyph Hill, an important archaeological site on an adjacent 780-acre parcel purchased last year.