We conducted four experiments to examine developmental differences in preferences for using color, size, and location information to disambiguate hiding places. Three- and 4-year-olds and adults described how to find a miniature mouse that was hidden in one of two highly similar small objects in a dollhouse. In Experiment 1, the hiding places could be disambiguated by either color or location. Three-year-olds preferred color to location whereas adults preferred location to color information. Four-year-olds showed no preferences. In Experiment 2, the hiding places could be disambiguated by either size or location. Four-year-olds preferred size to location information whereas adults preferred location to size information. Three-year-olds showed no preferences. In Experiment 3, the hiding places could be disambiguated by either color or size information. Adults preferred size to color information, but 3- and 4-year-olds showed no preference for either type of information. Experiment 4 revealed that when only location information was available for disambiguating the hiding places, 4-year-olds referred to disambiguating location information on a significantly greater percentage of trials than did 3-year-olds. Discussion focuses on the role of relational complexity and pragmatic knowledge in producing preferences for disambiguating information in spatial communication tasks. (Contains 4 figures, 3 tables and 1 footnote.)