Abstract:  Indexical expressions (I, here, now, etc.), and their counterprts in thought, have long been thought to play a special role in agency and attitudes such as belief, desires, and intentions. According to one strand of these Essentialist views, indexical thoughts are necessary for intentional action. Aginst this, recent Anti-Essentialists have argued that intentional action does not in general require such thoughts or representations. This paper identifies a central kind of intentional action for which indexicalr thoughts are necessary. This is the kind of action that someone performs when using a map, or something equivalent, to move from one place to another. It is argued that using a map in this way requires thinking of some location both as "that place on the map" and "where I am." Various consequences for Essentialism and Anti-Essentialism about indexicality are discussed.