Rainbow trout are fish native to the Pacific Ocean and Western US coastal streams. They are found in cold water. This is why they are called winter fish. A variety of rainbow trout that is native to a freshwater river matures in the ocean or a large lake, and returns to freshwater to offspring is known as a Steelhead. The main feature of rainbow trout is that they are easy to get matured in hatcheries. In addition, they are very easy and fun to catch. These fish are stocked into ponds and rivers all over the world.All Rights Reserved