Masculinities reflect the characteristics of the spaces—real and imaginary, material and metaphorical—in which they are constructed. Mapmakers, ranging from academic geographers to popular storytellers, chart masculinist geographies: Spaces in which masculinities are mapped. One important genre of masculinist geographical narrative is adventure. I explore the masculinism of adventure through a detailed, contextual reading of one particular adventure story. The Young Fur Traders—a British Victorian boys' adventure story set in Canada, written by the Scottish writer Robert Michael Ballantyne. In the setting of The Young Fur Traders, Ballantyne mapped a form of masculinity known generally as Christian manliness. Literal journeys through the spaces of adventure constituted metaphorical journeys through adolescence, from white, middle-class boyhood to white, middle-class manhood. Settings—liminal, largely unknown but broadly realistic, male-dominated, primitive, simplified, and idealised spaces—were imprinted upon this masculinity. The settings of adventure stories arc cultural spaces in which hegemonic masculinity is mapped and, in some cases, unmapped.