In this paper we investigate a new interaction technique that enables users to capture You-Are-Here maps using their smartphone, and then manipulate the captured image in such a way that it can be used for navigation purposes. This technique utilises groups of similar You-Are-Here maps, which we call map constellations. Results from our field study, in which we tested a working prototype of our interaction technique, are presented. The results show an insight into users' views towards the interaction, and the techniques they employed to identically frame two You-Are-Here maps using a smartphone camera.