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Arches National Park
@archesnps

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Here at Arches National Park, we are known for our rocks! Our rocks range in age, texture, porosity, color, and shape. The rock strata we see in the park are Navajo Sandstone, the Dewey Bridge Member of the Carmel Formation, the Slick Rock Member of Entrada Sandstone, and the Moab Member of the Curtis Formation. Depending on the conditions under which a rock was formed, iron can color rocks red, black, orange, purple, or greenish grey. Our rocks can even appear as different colors in different lighting, especially during the sunrise or sunset glow. Most of our over 2,000 arches form in our Entrada Sandstone, making it a valuable resource. During National Park Service Fashion Week, we highlight the warm tones found in our sandstone rock formations and celebrate the weathered shapes created over time by erosion. What words would you use to highlight our rock formations? NPS Graphic: Mary Prachthauser #NPSFW