Question

What is the approximate longitude of the most westerly boundary of the united states

Answer 1

Cape Prince of Wales, at 168°05′05″W, is the westernmost point on the mainland of the Americas.
Udall Point, Guam ( 13°26′51″N, 144°37′5.5″E) is the westernmost point in all of US territory.
Hope this makes sense and helps :)

Answer 2

About 120. I'm pretty sir that is the most over. ☺️