As part of a long-term project to investigate the cultural history of the Nasca region in southern Peru, the famous Nasca lines, or geoglyphs, have been documented since 1997 in a joint effort by archaeologists and geomatic engineers. The project aims on the one hand at a new interpretation of the geoglyphs based on solid field data. On the other hand, it is thought of as a contribution to the preservation of the geoglyphs. Prior to the start of the project, the geoglyphs had never been adequately recorded. In a new approach that combined aerial photogrammetry with archaeological fieldwork, we thoroughly documented more than 1 500 geoglyphs in the vicinity of Palpa. While different aspects of this work have been described in previous reports, this paper offers an overview of the technical procedures from data acquisition to processing, modeling, and visualization.