 After crossing the mouth of the Gardner River, they traveled along the benches above the western side of the Yellowstone until they reached Tower Fall.At Tower Fall they forded the Yellowstone and explored the East Fork (Lamar River) and Lamar Valley probably as far as the confluence with Calfee Creek .From there, the party returned to the Yellowstone in a due West route which brought them to the area of Yellowstone Falls and the Grand Canyon of the Yellowstone.