The sublime has been a relatively neglected topic in recent work in philosophical aesthetics, with existing discussions confined mainly to problems in Kant's theory. Given the revival of interest in his aesthetic theory and the influence of the Kantian sublime compared to other eighteenth-century accounts, this focus is not surprising. Kant's emphasis on nature also sets his theory apart from other eighteenth-century theories that, although making nature central, also give explicit attention to moral character and mathematical ideas and generally devote more discussion to art and artifacts than Kant did. Recent postmodern and poststructuralist theories of the sublime tend to concentrate on the concept in art and literature. New work in aesthetics of nature has mined Kant's discussion of natural beauty, yet little attention has been given to his treatment of the sublime or, indeed, to non-Kantian understandings of the sublime. In this essay, the author examines the ambiguous place of aesthetic appreciation of nature in Kant's theory of the sublime. (Contains 42 notes.)