The 89-mile Pine River and its major tributary, the 62-mile Popple River, offer visitors a wild experience. This river system is one of Wisconsin’s more remote river systems. If you visit this river system, plan on seeing a good mixture of quiet waters that change to swift, rocky riffles, low rapids and even waterfalls. The northern sections of this river system are known for their trout fishing. The cool waters are home to brook trout and brown trout. The southern section of this system is warmer than up north, so you will see other species of fish such as northern pike, walleye, smallmouth bass and panfish.