"Of Mist, and Grass, and Sand" is a science fiction short story by Vonda N. McIntyre. First published in Analog Science Fiction and Fact in October 1973, it was anthologized multiple times, and also formed the first chapter of McIntyre's 1978 novel Dreamsnake. Set after a nuclear holocaust, "Of Mist, and Grass, and Sand" tells of Snake, a healer who uses the venom of three genetically engineered snakes to heal, and follows her effort to heal a nomad boy of a tumor.