Riffle Landforms Have 2 Main Characteristics:

  1. Shallow section of a river or stream
  2. Rough bottom, causing ripples on the surface

Example of a Riffle Landform:

Dunn Riffle, Rogue River, Oregon, USA
The riffle picture above is of Athabasca River with a view of Mount Kerkeslin at Jasper National Park in Canada.

What is a Riffle Landform?

A riffle is a portion of a river or stream that is shallow with a rough bottom, causing turbulence and forming ripples on the water´s surface.

How are Riffles Formed?

A riffle is formed by a shallow, rocky bottom in a river or stream. The rocks are not large enough to create large waves or heavy rapids. In very shallow water, a riffle may be formed by a gravel stream bed.

How Large is a Riffle?

A riffle can extend across the entire width of a river or stream. A riffle may include only a portion of the river´s width.

Where Can a Riffle Be Found?

A riffle can be found in a shallow area of a river or stream where rocks or rock formations may be present on the bottom.

Famous Riffles and Facts

• Dunn Riffle, Rogue River, Oregon, USA
• Green Riffle, Klammath River, Oregon, USA
• Spokane River, Washington State, USA
• Fifty Mile Riffle, Madison River, Montana
• Sandy River, Oregon, USA

Dunn Riffle on the Rogue River near Hellgate Canyon is a favorite fishing spot about 11 miles from the town of Redwood in southwest Oregon. The river is also known for beautiful scenery and excellent whitewater rafting. Green Riffle is a section of the lower Klammath River, upstream of a class 6 rapid called Ishi Pishi Falls with a major drop. If you don´t exit the river at Green Riffle you´ll be in serious danger.

When the river level is high, this rapid is considered impassible. The Spokane River has many riffles that can be found within the city and county of Spokane, a city in eastern Washington State. There is a scenic hiking trail that follows the river for 37 miles, passing through the city of Spokane on the way to the Idaho state border.

Downstream from Yellowstone Park and below Hebgen Dam, Fifty Mile Riffle can be found on the Madison River in Montana. This section of the river has riffles that continue for 50 miles and is known for excellent fly fishing. The Sandy River is a shallow river with many riffles, passing through scenic Oregon country. It enters the Columbia River just east of Portland, Oregon, flowing from its source on Mt. Hood, 56 miles upstream.

Riffle Definition:

A shallow section in a river, creek or stream that causes a ripples in the water.

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