Answer: The discussion that Sacagawea "legend" makes in the last paragraph would be:
- Her association to Clark and Lewis' voyage.
Sacagawea
The focus of the author is on to portray the woman named "Sacagawea" who undertakes the expedition at such a tender age.
The objectives and the goals she possesses to prospect the territory of Louisiana.
The assistance that she provides to Lewis, as well as, Clark, has been recounted in the last description and allows them to attain their documented goals.
Thus, this association has been talked about in the latter part of the Sacagawea "legend."