What was the primary reason for dawson being described as the most tragedy ridden camp?

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

you want somebody to write an essay for you?

sorry its a lil late, but the answer is d. the rotation 180° about z'