Trout fishing has slowed down considerably on the Gray Reef of the North Platte River. The water is very mossy below the dam so fly anglers are having some tough, tough days. The lower stretches below Gray Reef closer to Casper are fishing a little better using San Juan worms, pheasant tails and black midges.

Water flow out of Gray Reef Dam is 550 cfs.

- Cuylar Cercy, Ugly Bug Fly Shop in Casper

Trout fishing is good at Alcova Reservoir. Most reports are from the west end of the lake, especially Black Beach where shore anglers are catching fish on worms, marshmallows and Power Bait. No recent reports from Pathfinder Reservoir, which is 34.6 percent full.

- Yolanda Strand, Sloane's General Store in Alcova

Fishing is pretty good at Boysen Reservoir jigging for crappie in the bays and for perch around Tough Creek. Some trout are being caught here and there by anglers trolling worm harnesses. Walleye fishing is slow.

The lake is 85 percent full with an outflow of 706 cfs from the dam.

- Jenella Hackett, Boysen Marina

Walleye fishing is good at Glendo Reservoir jigging spoons off Sandy Point, in rocky areas and in the shallows. Most of the fish being caught are in the 15- to 18-inch range.

Glendo is 24.5 percent flow with an outflow of 28 cfs from the dam.

- Rob Davis, Wyoming Walleye Circuit

The Open Spaces fishing report is compiled on Tuesdays by Wes Smalling, Star-Tribune outdoors editor. Conditions can change daily. Reservoir levels and river flows provided by the U.S. Bureau of Reclamation (cfs = cubic feet per second). To contribute to the report, send an e-mail to wes.smalling@trib.com.