"Waterways of Westward Expansion - The Ohio River and its Tributaries" by Archer Butler Hulbert is a historical account written in the early 20th century. This work explores the significant role played by the Ohio River and its tributaries during the westward expansion of the United States. The book delves into the geography, early explorations, and navigation methods integral to the development of the American frontier. The opening of the book provides an overview of the Ohio River's importance in draining vast, fertile territories and influencing migration patterns in early American history. Hulbert discusses the river's dimensions, its French naming as La Belle Rivière, and the early journeys of explorers like Céloron de Bienville. This introduction sets the stage for an in-depth investigation of the river's historical context and its evolution as a critical route for commerce and settlement during the expansion era, highlighting the vital connection between waterways and the growth of the American frontier. (This is an automatically generated summary.)