Sex differences in mental rotation skills are a robust finding in small sca
le laboratory-based studies of spatial cognition. There is almost no eviden
ce in the literature, however, relating these skills to performance on spat
ial tasks in large-scale, real-world activities such as navigating in a neu
city or in the woods. This study investigates the connections between ment
al rotation skills as measured by the Vandenburg-Kuse Mental Rotations test
and the performance of college students (n=211) navigating a G-km orientee
ring course. The results indicate that mental rotation skills are significa
ntly correlated with wayfinding performance on an orienteering task. The fi
ndings also replicate ser differences in spatial ability as found in labora
tory-scale studies. However. the findings complicate the discussion of ment
al rotation skills and sex because women often performed as well as men des
pite having lon er mean test scores. This suggests that mental rotation abi
lity may not be as necessary for some women's wayfinding as it is for men's
navigation.