1948 Route In and Around the Grand Canyon, AZ

Map of the Grand Canyon National Park, showing approach roads (c. 1948). An ephemeral piece (likely coming from a book or guide/brochure) showing locations of lodges, museums, camps, monuments etc. It has been altered from it's original state in that it has been professionally hand watercolored. In fine overall condition, with very minor wear along the centerfold. Measures approximately 9 x 11 inches.