The fifth chapter reexamines boundaries, roads, and changing geographical epistemes in the context of the multiple categories of “trans-frontier men” that emerged in the late nineteenth century. These multiple categories–groups threatening the security of empire or those protecting it–reveal the anxieties and aspirations tied to the frontier and to the imperial policy surrounding it. Growing security concerns pushed imperial administrators to better define and “close” the frontier, in large part by restricting access to information about it.