Dune areas may occur in three forms: simple (isolated dunes of basic type), compound (larger dunes on which smaller dunes of same type form), and complex (combinations of different types).

Simple dunes are basic forms with a minimum number of slipfaces that define the geometric type. Compound dunes are large dunes on which smaller dunes of similar type and slipface orientation are …

May 27, 2025 · The tallest dunes in North America are the centerpiece in a diverse landscape of grasslands, wetlands, forests, alpine lakes, and tundra. Stay on a moonless night to experience …

A dune is a mound of sand this is formed by the wind, usually along the beach or in a desert. Dunes form when wind blows sand into a sheltered area behind an obstacle.

As Europeans began to settle along the central Oregon coast during the 1700s and 1800s, they faced a significant challenge: the natural movement of the dunes. The sand swallowed roads, highways...

Dunes occur in different forms and sizes, formed by interaction with the flow of air or water. Most kinds of dunes are longer on the windward side where the sand is pushed up the dune and have a shorter …

To secure his people's future, a young man travels to a dangerous, resource-rich planet — where malevolent forces push him toward a foreboding destiny.

Explore soaring sand dunes set against snow-capped peaks at Great Sand Dunes National Park and Preserve. This Colorado park protects the tallest dunes in North America, formed over countless …

With an unparalleled position along 15 miles of Lake Michigan shoreline, 50 miles of rugged trails, and a diverse ecosystem of dunes, wetlands, prairies, and old-growth forest, Indiana Dunes National Park …

Dunes occur in different forms and sizes, formed by interaction with the flow of air or water. Most kinds of dunes are longer on the windward side where the sand is pushed up the dune and have a shorter …