The Impact Survey Team was a group of Native American leaders who worked to assess the impact of the Trail of Broken Treaties caravan on the Native American community. The team was led by Hank Adams of the American Indian Movement, and also included Bennie Attention of the All Indian Pueblo Council, Leon F. Cook of the National Congress of American Indians, Joe De La Cruz of the Quinault Tribe, George Effman of the Inter-Tribal Council of California, William Farrison of the Phoenix Area Vice President of the NCAI, Tom Fredericks of the Native American Rights Fund, Roy George of the Small Tribes of Western Washington, La Donna Harris of Americans for Indian Opportunity, Roger Jim of the Northwest Affiliated Tribes, Louis La Rose of the Winnebago Tribe of Nebraska, Oren Lyons of the Onondaga Tribe, Peter MacDonald of the Navajo Nation, Margaret Powell of the Hoopa Valley Tribal Council, Osley Saunook