This detailed USGS map was made for the Forest Service with the state's National Forests identified in various shades of green, including large swaths of central and northern California. "Main Highways" are marked in red and show surprisingly good access to the National Forests. The map is flanked by several photographic illustrations and "six rules for preventing fires in the mountains." Related text on verso. This appears to be one of the earliest, if not the earliest, maps to promote tourism in the state's national forests.

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Condition: B+

Issued folding with minor foxing, a couple of short archivally repaired fold separations, and some light extraneous creasing adjacent to the folds.