What type of new difficulty did Lewis and Clark encounter October 1805?

On November 15, 1805, Lewis and Clark and the Corps of Volunteers for Northwestern Discovery reach the Pacific Ocean at the mouth of the Columbia River, one year, six months, and one day after leaving St. Louis, Missouri, in search of the legendary "Northwest Passage" to the sea.

Explanation:

hope this helps

pretty sure a is right

during the nancy. probs