nps

Stop #7C Grand Canyon,AZ

The Grand Canyon is a record of Earth’s history. The oldest rocks exposed in the canyon are nearly 2 billion years old. Layers of sandstone, limestone, and shale preserve ancient environments, including oceans, deserts, and forests. The canyon itself was mainly shaped by erosion from the Colorado

Stop #7B Walnut Canyon

Recognizing the importance of preserving these resources, President Woodrow Wilson established Walnut Canyon as a national monument on November 30, 1915, protecting its archaeological sites for future generations.