This paper describes a year-long, college senior composition course based on nature writing and open to students from all content areas. Nature writing is defined as writing about nature with the specific requirement that the writer must remain true to the objective facts of nature while at the same time presenting the human response to, and the human relationship with, nature. The lecture and laboratory portions of the course are described and the course textbooks and required readings are listed. The first semester is described as a crash course in Western civilization, and the second semester as a synthesis of the techniques, elements of style, and modes of development that students have drawn from the writing models studied. The four modes of discourse emphasized in the course are explained (description, appreciation, interpretation, and persuasion), as are the exercises assigned to practice those writing modes. The following methods and objectives are said to be emphasized in the course: (1) connecting reading to writing assignments, (2) developing a critical writing distance that combines both informational and aesthetic stances, (3) writing assignments patterned to relate to the discourse modes, (4) extensive field trips to sites that motivate descriptive writing, and (5) peer critiques and guided revision sessions. (AEA)