a marker
It is a canyon that is under the sea.A canyon is a place where the ground has eroded into a deep ravine or gully - like the Grand Canyon. The sea is the same as the ocean.
Glen Canyon is approximately 710 feet deep, or approximately 220 meters deep. The canyon, with the Glen Canyon Dam, can hold 5,370,000 cubic yards for water.
Some parts of the Grand Canyon are about 1 mile or 1.6km deep.
A deep gorge can also be called a canyon.
A canyon is a deep narrow valley.
A deep valley could be called a canyon, such as the Grand Canyon.
It is a Canyon as in the Grand Canyon.
canyon
In this context, it is common. A specific canyon, like the Grand Canyon, is proper.
The colca canyon located in Peru, is the deepest canyon in the word at 4360 m.
Canyon
1. The Yarlung Tsangpo Great Canyon in China, 6,009 m deep; 2. Kali Gendaki Canyon in Nepal, 4,403 m deep; 3. Korka Canyon in Peru, 3,200 m deep; 4. Hutiaoxia Canyon on the Jinsha River, in China, 3,000 m deep