Crisp copper engraved thematic chart with good detail. Coloring indicates climatic regions rather than political divisions. Major areas are named for the river basins: Columbia and Colorado in the West, the Mississippi in the Midwest, and Mackenzie and Saskatscha in the North. Table gives length of major rivers. A nicely colored and handsome sheet.
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Condition: B
Dark impression with fine original coloring and wide margins. Scattered foxing.