Basically, it's iron rust. Pure sandstone is white, and water can very easily seep through this rock. When the water meets or carries iron into this rock, the iron rusts and becomes red.
Over 2000 sandstone arches are in the park.
sedimentary
Delicate Arch, at Arches National Park in Utah, is composed of sandstone.
Arches National Park is in Utah.
The Arches National Park.
Arches National Park is in a semi desert region of Utah.
Utah
Utah.
Zion, Bryce Canyon, Arches, Canyonlands, and Capitol Reef.
They are closest to Moab, Utah.
West, to Utah.
Moab, Utah