"Report on the Washington Territory" is a documentary scientific work by the famous American geologist and writer William Henry Ruffner. In the book, the author describes in detail the natural resources, geography, climate, flora and fauna of the Washington Territory. Ruffner draws attention to the importance of nature conservation and wise use of resources in this unique area. The book contains many illustrations, maps and data, making it a useful resource for scientists, geographers, historians and anyone interested in studying the nature and history of the development of this area. "Report on the Washington Territory" has become a classic study of this American region and an integral part of the cultural heritage.