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We have developed a browsing tool for visualizing information about geographic surfaces using map-based augmented reality (AR). Map-based AR technology enables virtual objects to be overlaid on an actual map, creating a tangible user interface. In map-based AR applications, a virtual lens pointer is often used for object selection. However, this type of interaction is difficult when there are many points of possible interest on the map. Moreover, although a printed map is good for a 2D overview, it does not give a 3D local view. Our browsing tool overcomes these problems by using three interaction techniques: 1) a pointer for reliable object selection, 2) a slider for variable position selection, and 3) a local view simulated from an egocentric viewpoint. It provides a map-based learning environment that contains geographically embedded information. We applied the browsing tool to learning on exploration in the Apollo 17 mission.