Idaho's last four governors and descendants of Indians who first guided settlers across the Snake River more than a century ago celebrated the opening of an interpretive center at Three Island State Park. "Can you imagine if you were on the other side of the river looking across, say 100 or 150 years ago, thinking how crossing the river is not a celebration, but a challenge?" Gov. Dirk Kempthorne asked at the July 14 annual commemoration. Kempthorne - joined by former Govs. Phil Batt, Cecil Andrus and John Evans - said the journey started by the emigrants is not complete. The relationship between the Shoshone-Paiute Tribe and emigrants is a good analogy for the federal, state and private partnership that made the $3.2 million interpretive center possible, he said. Tribal council member Terry Gibson spoke of the Indians' relationship with the white people they encountered. The center's theme is the mingling of cultures between emigrants and Indians, who supplemented their salmon-based income by guiding wagons across the swift, cold river. "The emigrants that first started showing up here were in bad shape," Gibson said. "Our people were here to help them and nurse them back to health. We've always tried to help."