Most lakes within 50 miles of SF recieve heavy fishing pressure because of the amount of people. If you want really good fishing you'll have to go North about 150 miles or down to the river. But within 50 miles of SF is Thompson, Poinsett, Sinai, Scotts slough, lake Alvin, Whitewood, Twin and Menno. Poinsett is a good lake but gets heavily pressured. Sinai is a guarantee for 8 inch crappies but not much else. Most of these lakes are on a boom and bust cycle.