Researchers and practitioners in human-computer interaction are increasingly taking geographic approaches to their work. Whether designing novel location-based systems, developing natural user interfaces for maps, or exploring online interactions over space and time, HCI is discovering that geographic questions, methods, and use cases are becoming integral to our field. Unfortunately, to our knowledge, there have been no direct efforts to unite members of the community exploring geographic HCI. The goal of this forum is to bring together researchers from a variety of areas to provide a summary of what has been done thus far and to discuss options for developing a more formal geographic HCI community. We will also highlight the troublesome lack of communication between scholars in geography and HCI and the opportunities that will result from increased collaboration between the two fields.