The Trinity River in California is a great fishing river for a number of reasons.
First, it is home to a variety of fish species such as Chinook salmon, steelhead trout, and smallmouth bass.
Second, the river's water flow is regulated by dams, which helps to maintain consistent water temperatures and flow rates that are conducive to fish breeding and feeding.
Additionally, the river's scenic beauty and relatively remote location make it a popular destination for anglers seeking a peaceful and rewarding fishing experience.