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The National Library of Medicine’s Visible Human Project began with a contract to cryosection and photograph one male and one female cadaver. The University of Colorado’s Center for Human Simulation (CHS) performed the research and supplied the raw images, which have been freely distributed since. However, the steps required to create models suitable for studying and displaying trauma dwarf the creation of the original images. Over the past ten years, the CHS has spent approximately 20 people years segmenting and classifying the data. This process creates a number for each volume element (voxel) that identifies the structure to which it belongs and becomes the major driver of the database of associated properties. Creating polygons from this data differs from the creation of polygons from fuzzy data such as Computed Tomography (CT) or Magnetic Resonance Imaging (MRI) and has led us to develop our own polygon creation methods as well.