See the cross section https://kids.britannica.com/students/assembly/view/68621 https://kids.britannica.com/students/assembly/view/68621 "Natural bowl higher t

See the cross section https://kids.britannica.com/students/assembly/view/68621 https://kids.britannica.com/students/assembly/view/68621 "Natural bowl higher than sea level" could be called a lake.