Fly-fishing is very good on the Gray Reef of the North Platte River. Anglers are catching some on dry flies during morning trico hatches. When the tricos aren't coming off, use the usual double-nymph combos of leeches, red rock worms and pheasant tails. Water flow is about 1,700 cfs.

- Cuylar Cercy, Ugly Bug Fly Shop in Casper

Alcova and Pathfinder reservoirs remain good trolling bottom bouncers and gold colored worm harnesses for walleye and trout. Anglers using worms are also catching fish from shore.

- Yolanda Strand, Sloane's General Store in Alcova

The walleye fishing has slowed down at Glendo Reservoir. Some anglers are catching a few by trolling black and white or black and chrome crank baits in about 25 feet of water. Jigging in the shallows works for a while early in the mornings, but then the fish go deep as the temperature climbs.

- Bob Shelver, Curly's Leisure Sports in Douglas

Boysen Reservoir is slowing down for walleye, but the perch fishing is picking up. Anglers are doing best for perch near Tough Creek and The Sisters using jigs or jig-heads tipped with night crawlers or minnows. The water is clearing nicely and the lake is about five feet from being full.

- Gary Hackett, Boysen Marina

Recent rains clouded the Upper North Platte around Saratoga, but the river should clear in the next few days. The river is still high enough to float in a drift boat from Bennet Peak, but it's getting bony in a few spots. Trout fishing has been good for fly anglers using streamers with nymph droppers, or using dry flies during trico hatches.

- Mike "Hack" Patterson, Hack's Tackle in Saratoga

The Cody region is enjoying some of its best fishing of the year right now. Trout fishing is very good on the North Fork of the Shoshone and Lower Clark's Fork of the Yellowstone River for fly anglers using attractors in the middle of the day, and match-the-hatch patterns mornings and evenings during hatches of gray drakes, green drakes, pale morning duns and caddis. Spin anglers are also doing well using 1/4 ounce and 3/8 ounce lures.

- Tim Wade, North Fork Anglers in Cody

Walleye fishing is mostly slow at Keyhole Reservoir, but a few are being caught on crank baits. Anglers are also picking up a few northern pike on spoons, spinners and crank baits. A 15.94-pound freshwater drum was caught on Aug. 8, a fish that could become a state record.

- Randy Crowley, Keyhole Marina

The Open Spaces fishing report is compiled on Tuesdays by Wes Smalling, Star-Tribune outdoors editor. Conditions can change daily. To contribute to the fishing report, send an e-mail to wes.smalling@trib.com.