Associate Professor Jeffrey Erbig’s 2020 publication, Where Caciques and Mapmakers Met: Border Making in Eighteenth-Century South America, for the University of North Carolina Press, examines Indigenous responses to the largest imperial mapmaking expedition ever sent to the Americas. The book explores the Luso-Hispanic effort to create a border between Brazil and Spanish South America in the eighteenth century. Drawing upon archival research in more than two dozen archives in seven countries, Erbig demonstrates that inter-imperial border drawing was a response to native sovereignty in such spaces, that Indigenous agents shaped where the border was drawn, and that afterward, they appropriated it for their own purposes.