: Williams Fork Reservoir - (Ice conditions as of 2/8/2017) The reservoir has an ice thickness of about 10 to 12 inches. Reports from anglers have been good. Anglers have been catching a lot of lake trout, most being in the 9 to 16 inch range, with a few in the 18 to 24 inch range. Most anglers have been using tube jigs and sucker meat, jigging on or near the bottom at depths of 45 to 65 feet. Anglers have been catching rainbows at depths of 3 to 9 feet.