Early in the history of map supplements at National Geographic, in February of 1912 we produced a Bird's Eye View of the Panama Canal, which was then nearing completion.
Last fall, in cooperation with the Panamanian government, we published an AdventureMap of Panama. This two-sided waterproof, tearproof map shows all of Panama at a scale of 1:475,000 (8 miles to the inch) and includes detailed insets of Panama City and the Canal Region (excerpt below). Map notes, text blocks and photos make this map into a mini-guidebook, making it a great planning tool for an outdoor recreation trip to Panama and to use in-country as well.
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