The Los Angeles River is a 51-mile urban waterway flowing from Canoga Park in the San Fernando Valley to Long Beach, where it empties into the Pacific Ocean. Once a natural river supporting abundant wildlife including steelhead trout until the 1940s, the river was largely converted to a concrete flood control channel after devastating floods in the early 20th century. Today, the river is experiencing revitalization efforts, with certain sections maintaining natural bottoms that support aquatic life, particularly in the Glendale Narrows and Sepulveda Basin. These soft-bottom sections, along with improved water quality in recent years, have created habitat for various fish species, making the river a unique urban fishing destination that offers surprising opportunities for anglers amid the metropolis.