A more thorough explanation:

Definition: Mara (pronounced mair-uh) is a historical term used to describe a body of water, such as a lake or a pool, that cannot be drained.

• The Great Salt Lake in Utah is an example of a mara.
• The Dead Sea, located between Jordan and Israel, is another example of a mara.

These examples illustrate the definition of mara because both the Great Salt Lake and the Dead Sea are bodies of water that cannot be drained. Despite efforts to reduce the water levels in these lakes, they remain at a consistent level due to various geological and environmental factors.