Answer:
John Williams Gunnison
Explanation:
John W. Gunnison. John Williams Gunnison (1812–53) was a nineteenth-century US Army officer and explorer. In 1853 he was charged with finding a railroad route across the Rocky Mountains, and while carrying out his mission he explored the Western Slope of Colorado.
The answer to this is federal district court. Hope this helps :)
A) Road development made canals obsolete and rarely used.
1 The United States was concerned about renewed European colonization efforts in the wake of Latin American independence movements.
