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1 Hatch-Eggert Expedition -- John Wesley Powell monument, Green River, Wyoming1955Image
2 Hatch-Eggert Expedition -- open country below Green River, Wyoming1955Image
3 Hatch-Eggert Expedition -- party around monument in Green River, Wyoming (2:7:3 is double exposure with 2:7:6)1955Image
4 Hatch-Eggert Expedition -- Sunset at Green River, Wyoming1955; 1956Image
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