What did Daniel Boone famously contribute to American westward expansion?

Daniel Boone is best known for his role in American westward expansion, particularly through his clearing of the Wilderness Road. This route was significant as it provided a pathway for settlers moving into what is now Kentucky, facilitating their migration into the western frontier. Boone’s efforts helped to open up the region for settlement and exploration during the late 18th century, showcasing the spirit of adventure and perseverance associated with early American pioneers.

The Wilderness Road became a major pathway for thousands seeking new opportunities in the West, exemplifying Boone's contribution to expanding the nation's boundaries. His actions had a lasting impact on the settlement patterns and the development of the areas beyond the Appalachian Mountains, which were critical in the formation of the United States.

In contrast, other options such as founding the Georgia colony, writing the Declaration of Independence, and discovering gold in California are not accurate representations of Boone's historical actions and contributions. These events are associated with different figures and time periods in American history, illustrating the unique role Boone played in the context of westward expansion specifically.