Where in the constitution is the electoral college descibed

Article II, Section 1

Explanation:

Established in Article II, Section 1 of the U.S. Constitution, the Electoral College is the formal body which elects the President and Vice President of the United States.

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