Topographic mapping can be considered as the combination of processes required to produce a topographic map. Coherent optics has the potential for playing many roles in mapping systems of the future. The purpose of this paper is to indicate some of these roles. The limited discussion must be considered as an initial ad hoc attempt to define potentials in the eight areas of Photogrammetric Data Reduction, Image Processing, Optical Memories, Pattern Recognition, Performance Prediction, Holographic Terrain Displays, All-weather Mapping, and Field Applications. Other papers from the proceedings are broadly integrated along with selected references.