This volume introduces a new way to study the experiences of runaway slaves by defining different “spaces of freedom” that fugitive slaves inhabited. It also provides a groundbreaking continental view of fugitive slave migration, moving beyond the usual regional or national approaches to explore locations in Canada, the U.S. South, Mexico, and the Caribbean. Contributors use three main categories of freedom to compare and contrast various aspects of slave escape in the period between the revolutionary era and the U.S. Civil War. They investigate sites of formal freedom, regions in which slavery was abolished and refugees were legally free; sites of semiformal freedom, areas in which abolition laws conflicted with federal fugitive slave laws; and sites of informal freedom, places within the slaveholding South where runaways formed maroon communities or attempted to blend in with free black populations. The essays discuss slaves' motivations for choosing these destinations, the social networks that supported their plans, what it was like to settle in their new societies, and how slave flight impacted broader debates about slavery. This volume redraws the map of escape and emancipation during this period, emphasizing the importance of place in defining the meaning and extent of freedom.