Brine springs are natural sources of water that contain a high concentration of salt, often much saltier than regular seawater. These springs occur when groundwater flows through salt deposits, dissolving the salt and creating a saline solution. The water can emerge at the surface, forming pools or flowing into nearby rivers and lakes. Brine springs are found in various locations around the world, including areas like the Great Salt Lake in Utah and the Dead Sea in the Middle East. They can support unique ecosystems and are often studied for their geological and environmental significance.