This vintage 1962 US Geological Survey Map of the Grand Canyon National Park is a must-have for any collector or enthusiast of antique maps. Measuring 38x59 inches, this wall map depicts the geological formations and features of the park in incredible detail. The map is an original from the 1960s and has been well-preserved over the years, making it an excellent addition to any collection. The map is a geological map and was produced by the US Geological Survey. It is a vintage original from the 1960s and has been well-preserved over the years. The map is in excellent shape and is a great addition to any collection. It depicts the geological formations and features of the Grand Canyon National Park in incredible detail.