"The Oregon Trail: Sketches of Prairie and Rocky-Mountain Life" by Francis Parkman is a book published in 1849. It recounts Parkman's two-month journey through Nebraska, Wyoming, Colorado, and Kansas in the summer of 1846, when he was twenty-three years old. The narrative centers on three weeks he spent hunting buffalo with an Oglala Sioux band, capturing the wonder and beauty of frontier life through vivid storytelling that would establish Parkman's reputation in American literature. (This is an automatically generated summary.)