""Account Of An Expedition From Pittsburgh To The Rocky Mountains Performed In The Years 1819-1820"" is a historical book written by Edwin James. The book is a detailed account of the expedition undertaken by Major Stephen H. Long and his team from Pittsburgh to the Rocky Mountains in the years 1819-1820. The expedition was commissioned by the United States government to explore and survey the western territories of the country.The book provides an in-depth description of the journey, including the difficulties and challenges faced by the team during their travels. It also includes detailed information about the geography, flora, and fauna of the western territories, as well as the native tribes encountered by the team.The author, Edwin James, was a botanist and geologist who accompanied the expedition as its official historian and naturalist. His expertise in these fields is evident in the book, which contains detailed descriptions of the various plants and animals encountered during the journey.Overall, ""Account Of An Expedition From Pittsburgh To The Rocky Mountains Performed In The Years 1819-1820"" is a valuable historical document that provides a fascinating glimpse into the early exploration of the western territories of the United States. It is a must-read for anyone interested in the history of the American West or the early days of scientific exploration in the country.By Order Of The Hon. J. C. Calhoun, Secretary Of War, Under The Command Of Maj. S. H. Long, Of The U.S. Top. Engineers. Compiled From The Notes Of Major Long, Mr. T. Say, And Other Gentlemen Of The Party By Edwin James, Botanist And Geologist To The Expedition.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.