This study discusses Native American woman's experience of existential outsideness, which is caused by the Euro-American legislative act as represented by Louise Erdrich in her novel Tracks. This research analyzes the role of the Dawes Act of 1887 in triggering the experience of existential outsideness among the Native Americans in general and Native American women in particular. Through Edward Casey Ralph's phenomenological perspective on the notion of spatiality, the study reinterprets the representation of space and place in Louise Erdrich's Tracks. The study offers a spatial reading of a Native American woman's life to explicate how she confronts the issues related to the confiscation of her ancestral lands that trigger her experience of existential outsideness to her land. The study concludes that Euro-American policies of acculturation and assimilation thwarted spatioexistential experiences of Native American women.