What is the Name of the pathway to the pacific northwest founded by jedediah smith in the 1820s?

The pathway to the Pacific Northwest founded by Jedediah Smith in the 1820s is known as the "South Pass." This route became a key passageway for fur traders and later for settlers moving westward during the westward expansion of the United States. Smith's exploration significantly contributed to the opening of the Oregon Trail and other overland routes to the Pacific.