Spatial reference - how we communicate notions such as location, motion and direction - is an important area of current research. Recent studies involving detailed analysis of geographically and typologically diverse languages have uncovered extensive and unexpected variation in the means languages utilise to encode spatial relations. This thesis aims to contribute to the growing body of knowledge about the cross-linguistic representation of the spatial domain. It is an analysis of fieldwork data which was collected for a preliminary investigation into the spatial reference system of Momu (also known as Fas), a Kwomtari language spoken in the West Sepik region of Papua New Guinea. The analysis focuses on descriptions of static location, motion and the use of frames of reference. In Momu, all basic locative, directional and motion verbs are deictically anchored, such that there are few expressions of spatial reference that do not obligatorily require deictic specification. This thesis demonstrates the particular attention Momu pays to the specification of deixis across all major sub-areas of the spatial domain.