eolian

Polished flint spearpoint (Vanport Flint, Middle Pennsylvanian; Roy Miller Flint Quarries, Flint Ridge, Ohio, USA) 1
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 43
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 34
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 1
by James St. John

Polished flint spearpoint (Vanport Flint, Middle Pennsylvanian; Roy Miller Flint Quarries, Flint Ridge, Ohio, USA) 3
by James St. John

house
by 3nei

Navajo Sandstone at sunset (Lower Jurassic; northern Kolob Canyons, Zion National Park, Utah, USA) 2
by James St. John

Eolian gypsum sand (Holocene; White Mountain, Black Rock Desert, Utah, USA) 1
by James St. John

Wingate Sandstone (Lower Jurassic; Ute Canyon, Colorado National Monument, Colorado, USA) 5
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 35
by James St. John

Navajo Sandstone over Kayenta Formation (Lower Jurassic; west of Moab, Utah, USA) 1
by James St. John

Peoria Loess (Upper Pleistocene, 20-22 ka; Loess Plains, south of Maxwell, Nebraska, USA) 1
by James St. John

Navajo Sandstone (Lower Jurassic), Timber Top Mountain, Kolob Canyons, Zion National Park, sw Utah 4
by James St. John

Killpecker Sand Dunes (Leucite Hills, north of Rock Springs, Wyoming, USA) 89
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 42
by James St. John

Aeolian island
by stefan_fotos

Weber Sandstone (Pennsylvanian-Permian; Sheep Creek Canyon, Uinta Mountains, Utah, USA) 1
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 44
by James St. John

Corona Arch (west of Moab, Utah, USA) 5
by James St. John

Weber Sandstone (Pennsylvanian-Permian; Sheep Creek Canyon, Uinta Mountains, Utah, USA) 2
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 37
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 49
by James St. John

Navajo Sandstone (Lower Jurassic), Paria Point & Beatty Point, Kolob Canyons, Zion National Park, sw Utah 1
by James St. John

Killpecker Sand Dunes (Leucite Hills, north of Rock Springs, Wyoming, USA) 44
by James St. John

Killpecker Sand Dunes (Leucite Hills, north of Rock Springs, Wyoming, USA) 6
by James St. John

Honeycomb weathering (Navajo Sandstone, Lower Jurassic; north of Bootlegger Canyon, Utah, USA) 1
by James St. John

Killpecker Sand Dunes (Leucite Hills, north of Rock Springs, Wyoming, USA) 45
by James St. John

Navajo Sandstone (Lower Jurassic; northern Kolob Canyons, Zion National Park, Utah, USA) 1
by James St. John

Cross-bedded sandstone (Glen Canyon Sandstone, Upper Triassic to Lower Jurassic; Dinosaur National Monument, Utah, USA) 13
by James St. John

Weber Sandstone (Pennsylvanian-Permian; Tower Rock, Sheep Creek Canyon, Uinta Mountains, Utah, USA) 2
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 29
by James St. John

Wingate Sandstone (Lower Jurassic; Cold Shivers Point, Columbus Canyon, Colorado National Monument, Colorado, USA) 2
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 38
by James St. John

Navajo Sandstone (Lower Jurassic), Timber Top Mountain, Kolob Canyons, Zion National Park, sw Utah 6
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 6
by James St. John

Cavernous weathering (Navajo Sandstone, Lower Jurassic; north of Bootlegger Canyon, Utah, USA) 1
by James St. John

Wingate Sandstone (Lower Jurassic; Ute Canyon, Colorado National Monument, Colorado, USA) 1
by James St. John

delfini tra panarea e stromboli
by Ghost-in-the-Shell

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 8
by James St. John

Navajo Sandstone at sunset (Lower Jurassic; northern Kolob Canyons, Zion National Park, Utah, USA) 16
by James St. John

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 219
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 31
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 7
by James St. John

Breccia-filled dissolution pit (Sandy Point Northeast roadcut, San Salvador Island, Bahamas) 3
by James St. John

Weber Sandstone & Moenkopi Formation (Dinosaur National Monument, Utah, USA) 4
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 19
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 10
by James St. John

Weber Sandstone (Pennsylvanian-Permian; Sheep Creek Canyon, Uinta Mountains, Utah, USA) 5
by James St. John

Killpecker Sand Dunes (Leucite Hills, north of Rock Springs, Wyoming, USA) 12
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 27
by James St. John

Navajo Sandstone (Lower Jurassic), Paria Point near sunset, Kolob Canyons, Zion National Park, sw Utah 8
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 13
by James St. John

Killpecker Sand Dunes (Leucite Hills, north of Rock Springs, Wyoming, USA) 65
by James St. John

Eolian gypsum sand (Holocene; White Mountain, Black Rock Desert, Utah, USA) 11
by James St. John

Weber Sandstone (Pennsylvanian-Permian; Split Mountain, Dinosaur National Monument, Utah, USA) 5
by James St. John

Killpecker Sand Dunes (Leucite Hills, north of Rock Springs, Wyoming, USA) 11
by James St. John

La Ventana Natural Arch (El Malpais National Monument, New Mexico, USA) 4
by James St. John

Aztec Sandstone (Upper Triassic to Lower Jurassic; Valley of Fire, Nevada, USA) 33
by James St. John

Glen Canyon Sandstone (Upper Triassic to Lower Jurassic; Dinosaur National Monument, Utah, USA) 1
by James St. John

Chinle Formation (Upper Triassic; just south of Split Mountain, Dinosaur National Monument, Utah, USA) 2
by James St. John