A requirement of the user interfaces of museum information systems is to enable access to information in ageographical context. Some existing user interfaces can locate information by means of place names, and some have scanned images of maps that include interactive fixed links to related images and text. The quality of geographical aspects of user interaction could however be greatly improved in several respects. The use of structured digital map data would enable user interaction with all displayed map features as well as the implementation of a variety of spatial queries based, for example, on spatial neighborhood and on the determination of paths through transpon networks. Digital map data can also be used to answer queries by presenting maps that are adapted to user needs with regard to the features displayed, the level of generalization and the annotation. There is considerable potential to enhance the range of spatial relationships that might be stored in geographical thesauri, which can be exploited in processing spatial queries in the absence of geometric data. Other challenges to further development include the maintenance of uncertainty in geographical data, and the processing of user queries that employ imprecise qualitative spatial terminology of natural language