In "Atchafalaya," John McPhee's essay in the 1989 book "The Control of Nature," the author chronicles efforts by the U.S. Army Corps of Engineers to prevent the Atchafalaya River from changing the course of the Mississippi River where they diverge, due to the Atchafalaya's steeper gradient and more direct route to the gulf. McPhee's classic essay proved inspirational to John Shaw, an assistant professor of geosciences who called it "a foundational text."