Zion Rocks
petrified sand dunes
petrified sand dunes
sandstone, top of Angel's Landing
sandstone, top of Angel's Landing
cross-bedding, Kaibab Trail near Emerald Pools
cross-bedding, Kaibab Trail near Emerald Pools
water-sculpting, Refrigerator Canyon
water-sculpting, Refrigerator Canyon
mid-cliff sculpting, Kaibab Trail near Emerald Pools
mid-cliff sculpting, Kaibab Trail near Emerald Pools
hard inclusions, Kaibab Trail near Emerald Pools
hard inclusions, Kaibab Trail near Emerald Pools
sandstone layering, Walter's Wiggles
sandstone layering, Walter's Wiggles
cross-bedding, Kaibab Trail near Emerald Pools
cross-bedding, Kaibab Trail near Emerald Pools
water-sculpting, Refrigerator Canyon
water-sculpting, Refrigerator Canyon
arch formation, cliff across from Scout Lookout
arch formation, cliff across from Scout Lookout
water-sculpting, Refrigerator Canyon
water-sculpting, Refrigerator Canyon
water-sculpting, Refrigerator Canyon
water-sculpting, Refrigerator Canyon
desert varnish on Navajo sandstone, Refrigerator Canyon
desert varnish on Navajo sandstone, Refrigerator Canyon

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Mesa Verde Rocks
desert varnished sandstone, Balcony House
desert varnished sandstone, Balcony House
wind-eroded sandstone
wind-eroded sandstone
ancient soot in cave ceiling
ancient soot in cave ceiling
lichen beside entry path, Cliff Palace
lichen beside entry path, Cliff Palace
eroded cave roof, Cliff Palace
eroded cave roof, Cliff Palace

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Grand Teton Rock quartzite boulder and lichens
quartzite boulder and lichens

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