Abstract: A ski or terrain map for detachable wearing on the arm, comprising flexible, folded band having opposed longitudinal end portions and having ski trails or other indicia of topography or terrain depicted thereon. Attachment means are carried by the band for detachably securing one longitudinal end portion of the band to the other longitudinal end portion of the band, such that the map firmly encircles the user's arm. The attachment means are contained within the perimeter of the map substrate, and, in a preferred embodiment, a loop or other means are provided for holding one end of the substrate substantially in contact with the user's arm as the substrate is circled about the arm. Preferably, Velcro or a similar strip having a multiplicity of interengageable fibers is used as the attachment means.