Great Falls
Captain Lewis discovered Sulphur Spring, top left, while exploring the series of falls. It's located on the north side of the Missouri River. Later, he would send men back to get some of the water to help cure Sacajawea's serious illness - hence the name, Sacajawea Spring. Lewis also made another important discovery. He had an excellent view of the south side, left, and saw that the terrain would work for the portage around the falls. The lower portage camp was just around the bend, on the south side of the Missouri River.
Lewis & Clark Trail - Montana
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