Floods eroded the sandstone away from the canyon walls.

Glaciers eroded the canyon rock as they melted and moved.

Ice wedged into cracks in the rock and weathered the canyon walls.

Wind blew large rocks that smashed against the canyon walls.

Flash Flood

A Glacier

A Hurricane

Melting Snow

Sand and mud from the Gulf of Mexico were washed ashore by tsunamis.

The river cut through the solid bedrock of the valley.

The river deposited large amounts of sediment from land erosion.

Hurricanes pushed soil and debris from the Gulf of Mexico onto the land.

Erosion by wind

Weathering by water freezing and thawing

Erosion by fast moving water

Sediments being deposited