Monument stenen (krijt piramides) in westerse Kansas prairie, luchtfoto - Stockfoto’s en -afbeeldingen

Monument Rocks (Chalk Pyramids) in western Kansas prairie, aerial view

Kazakhstan, the Ustyurt plateau, Akkergeshen - unique Cretaceous outcrops witnesses of the Cretaceous period.

Monument Rocks (Chalk Pyramids) in western Kansas prairie, aerial view

Sunset over badlands, Pawnee National Grassland in northern Colorado, typical winter or fall scenery with a dry grass

Rock formations in western Kansas prairie near Monument Rocks landmark, aerial view with a fall scenery

Dusk over Main Draw OHV Area in Pawnee National Grasslland in northern Colorado, fall or winter scenery, aerial view

Trail winding through prairie in northern Colorado, early spring aerial view

Dusk over Main Draw OHV Area in Pawnee National Grasslland in northern Colorado, fall or winter scenery, aerial view

Afternoon light over arroyo and badlands in Pawnee National Grassland in northern Colorado, summer scenery aerial view of Main Draw area

Panorama of sunset over Pawnee National Grassland in northern Colorado, typical winter or fall scenery with a dry grass