This paper discusses the Synagraphic Mapping System (SYMAP), a computerized cartographic planning tool, and describes its use by a large metropolitan junior college. The authors offer a brief introductory description of SYMAP and then discuss three possible uses of the system, illustrating their discussion with sample SYMAP-generated map displays. At an elementary level of usage, SYMAP can depict the geographical origins of students attending a college. At a more advanced level, these geographic origin maps can be used to compare similarities and differences between a college's primary and secondary catchment areas. For complex analysis, SYMAP can generate maps based on census data, which can be used by educational planners in conjunction with geographic origin maps to determine the best location for future college facilities within the college's overall service area. (Author/JG)