Interview with Mark Rosiek, a planetary photogrammetrist at the USGS Astrogeology Science Center. Rosiek discusses his work for the Air Force, prior to joining USGS, where he worked in image processing and satellite imagery. He then describes his work on mapping the landing site for the Huygens satellite on Titan, as well as his work on Martian contour maps using Viking images. Rosiek recalls his lunar mapping projects, specifically mapping the polar regions of the Moon. He describes differences between working with data from the Clementine mission versus the Lunar Reconnaissance Orbiter. Rosiek reflects on the technological advances that have changed planetary mapping work over the years. He discusses his education at SUNY College of Forestry where he was introduced to photogrammetry and remote sensing. Rosiek also talks about collaborating with geologists in his work, and he explains the changing role of USGS in the field of planetary mapping. The interview concludes with Rosiek sharing the importance of planetary mapping work and the need to continue updating maps as new technology emerges.