Arroyo is a landform term. It refers to a gulch or ravine through which a fast stream of water could flow. It usually is dry except after heavy rain.
a key is a landform that starts with a k and a knoll is a landform that starts with K and means a hill.
Yardang is a landform. It begins with the letter y.
delta
Basin
Erg is a landform. It is a flat sandy area of the desert with no vegetation.
Lagoon, Lake
One landform that starts with "Y" is a yardang, which is a narrow, sharp-crested ridge formed by wind erosion in a desert landscape.
funnel cloud
Bight of Benin & Bight of Biafra
The landform in Africa that starts with the letter "U" is the "Ugab River" in Namibia. It is a seasonal river that flows through the Namib Desert before emptying into the Atlantic Ocean.
Palo Duro Canyon is a landform located in the Texas Panhandle near Amarillo, Texas. It begins with the letter P.
Tepui, tombolo and tor are landforms. They begin with the letter t.