Abstract: A portable chart holder for use in open or exposed positions which provides protection from the elements and easy visual reference to contained charts is disclosed. The chart holder generally comprises a base panel surrounded by and integrally locked into a frame, a transparent cover designed to fit the configuration of the base panel-frame assembly such that a chart containing enclosure is formed between the base panel and the cover, and easily disengagable fastening means disposed at intervals about the periphery of the cover adapted to removably affix the cover to the frame such that the chart containing enclosure is substantially isolated from the effects of the elements.