Rivers are always surrounded by higher land.
A Valley-------------------------No a valley is not surrounded by higher land, the correct answer is a "basin" or a "depression".
A lake is a large body of water surrounded by land.
a valley
Basin
a basin
Basin that is the answer
Basin that is the answer
A low area surrounded by higher land is called a basin. The areas are usually bowl shaped and are completely surrounded.
lakes
A basin landform
its called a basin