"The Columbia River: Its History, Its Myths, Its Scenery, Its Commerce" by William Denison Lyman is a historical account written in the early 20th century. The work focuses on the Columbia River, aiming to encapsulate its geographical wonder as well as the rich tapestry of its history and myths, particularly those related to the Native American tribes of the region. The author, a professor of history, presents a picturesque narrative intended for general readers rather than specialists, illuminating both the natural beauty and the heroic past associated with this significant waterway. At the start of the book, the reader is introduced to the geological and mythical background of the Columbia River and its surroundings. The opening chapter discusses the physical formation of the river, shaped by forces like volcanic action and glaciation, and shares various Native American creation myths associated with the region. One notable myth is that of Wishpoosh, a giant beaver whose actions led to the creation of the river and its surrounding tribes. The chapter paints a vivid picture of the Columbia Basin's diverse landscapes, from its majestic mountains to fertile valleys, interconnecting them with the powerful narratives of the indigenous peoples who have long inhabited this beautiful region. (This is an automatically generated summary.)