This paper is concerned with maturities, genders, spaces, and bodies as historicizable co-constructs, pluralized rubrics and gradients that emerge and function as interdependent ideas. This view allows reflection on nuances between children, boys, men, boyhood, and masculinities as anchors for geographic inquiry. Diverse contexts are reviewed with an eye on mutual if mutable reciprocities between ideas of gender and maturity, and between gender/maturity and locality. The body of boys importantly figures in, and is figured by, these reciprocal significations which is explored in anthropological descriptions of ‘male transition’, and in contemporary historical observations in the West, and ‘America’ more specifically. A rigorous and cross-cultural intersectional focus is required to anchor children's geographies not just to ‘childhood’ as a site of entitlement, but more inclusively to local and interpenetrated ideas of becoming, belonging, and embodiment.