Humanistic geography is similar to ethnography in that both are concerned with describing actions and events in terms of their meaning to those experiencing them; humanistic geography is particularly concerned with understanding subjective social space: space as perceived by members of particular human groups. A humanistic geography case study, describing two taxonomical structures of spatial activity, basketball and "staying places," is derived from field work using ethnographic methods in a Yavapai reservation community near Phoenix. The recreation area in the community includes a basketball court which serves as the central element of social space for Yavapai youth, as activity there involves much more than basketball; the court is the focal point of information about activities, spatial movement of people, and overall community awareness. "Staying places," a concept alien to Anglo culture, describes a wide range of options for an individual's place of residence, not necessarily his "home," and may include places on-reservation, on other reservations, or in non-Indian communities. Ethnographic analysis of an individual's "staying places" and reasons for moving between them reveals an associational network in which individuals can exhibit considerable spatial mobility while maintaining a cultural and community sense of stability. (MH)