o·ri·en·teer·ing 
(ôr′ē-ĕn-tîrĭng, -ən-)
(ôr′ē-ĕn-tîrĭng, -ən-)n.
The use of map and compass to find a way through unfamiliar territory, especially when practiced as a competitive sport.
[Alteration of Swedish orientering, from orientera, to orient, from French orienter, from orient, east; see ORIENT.]
o′ri·en·teer n.