Pool 7 encompasses 13,440 acres starting from Lock and Dam 6 and ending at Lock and Dam 8 at 11.8 miles in length and 639 feet above MSL (mean sea level). Lake Onalaska, the largest lake in Pool 7, encompasses 7,700 acres. Featured Species: Largemouth Bass, Smallmouth Bass, Walleye, Sauger, Northern Pike, Black Crappie, White Bass, Perch, Bluegill Map Features: Lake Profile Fishery Information Fishing Tips and Techniques Accesses with Driving Directions 35 Fishing Points of Interest