The reservoirs have been open for about a month and they are fishing exceptional right now. 29 catches; 311 followers; 3 spots; Spinney Reservoir provides quality fishing for rainbow trout and northern pike. Fish species include: Rainbow Trout, Cutthroat Trout, Brown Trout, Cuttbow trout, yellow perch, and Northern Pike. Spinney Mountain Reservoir Park - Colorado. As of 11/16/2020, Spinney Mountain State Park is closed for the season and will reopen sometime in the spring of 2021. Spinney Reservoir is one of the best stillwater fisheries in the entire western US. Lon Hagler Reservoir. Occasionally brown trout can be caught here as well. As of 11/12/2020, it was reported that fishing has been slow at Lon Hagler Reservoir. The lake is heavily populated with rainbows, cutbows, browns and northern pike. The lake is classified as Gold Medal water and may be fished with artificial flies and lures only. Spinney’s primary management goal is to produce quality rainbow trout fishing. Spinney Mountain Reservoir. At the time of this posting, here are the current water levels: Antero - 101% capacity / Spinney - 91% capacity / Eleven Mile - 103% capacity / Cheesman - 63% capacity / Rampart - 92%. Spinney Mountain Reservoir. The regulations are flies and lures only and you can harvest one trout over 20 inches. Previous Reservoirs Fishing Reports Jun 10, 2020. Spinney Mountain Reservoir opens after ice-out usually sometime around mid to late April. A detailed fishing report for the Spinney Mountain Reservoir will make the difference between a good fishing here and a bad one. Let's face it, there's a lot we can learn and share from one another like what bait or lure is generating the best results.