When they descended into the more temperate regions on the other side, Sacagawea helped to find and cook camas roots to help them regain their strength.
As the expedition approached the mouth of the Columbia River on the Pacific Coast, Sacagawea gave up her beaded belt to enable the captains to trade for a fur robe they wished to give to President Thomas Jefferson.
She helped establish cultural contacts with Native American populations in addition to her contributions to natural history.
Sacagawea is known to be an important part of Lewis and Clark expedition, which is well known in the American public imagination.
When the corps reached the Pacific Ocean, all members of the expedition—including Sacagawea and Clark's black manservant York— voted on November 24 on the location for building their winter fort.