The longest Klamath Basin river entirely within Oregon’s borders has the potential to be the toughest and the most rewarding fishery. It’s not as popular as the Williamson because it is a river that requires much more skill to fish. On top of that, the nearly 100 miles has very little public access, so if you’re just visiting Klamath Falls, this is not the place for you. Instead, we recommend a guided trip.The Sprague requires an incredible time commitment, but if you put in the time, there are monsters around.The Upper Sprague River and the North and South Fork contain brook and brown trout as well as native redbands. The Middle Sprague near the town of Sprague River also has a quiet fishery for largemouth bass and yellow perch — both of which can be harvested with no limit on number or size.Sprague River is open April 22 – October 31 and allows retention of two fish over 15 inches in length with not more than one of those over 20 inches, but catch and release is strongly encouraged as these fish are wild and have infinitely more sport value than food value. Special regulations exist, so consult the Oregon Sport Fishing Regulations before making the trip.